SECURITIES AND EXCHANGE COMMISSION
                            Washington, D. C. 20549


                                   FORM 10-Q

(Mark one)

(X)        QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 1998

                                                OR

(  )       TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934

For the transition period from                      to
                               ----------------------     ---------------------

                               Commission file number 001-12277


                        ACNIELSEN CORPORATION
- - -------------------------------------------------------------------------------
          (Exact name of registrant as specified in its charter)

              Delaware                                  06-1454128
- - -------------------------------------     -------------------------------------
     (State of Incorporation)              (I.R.S. Employer Identification No.)

 177 Broad Street, Stamford, CT                           06901
- - -------------------------------------     -------------------------------------
(Address of principal executive offices)                (Zip Code)

Registrant's telephone number, including area code              (203) 961-3000
                                                                --------------

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by  Sections  13 or 15(d)  of the  Securities  Exchange  Act of 1934
during the preceding 12 months (or for such shorter  period that the  registrant
was  required  to file such  reports),  and (2) has been  subject to such filing
requirements for the past 90 days. Yes X No

Indicate the number of shares  outstanding  of each of the  issuer's  classes of
common stock, as of the latest practicable date:
                                                     Shares Outstanding
          Title of Class                             at April 30, 1998
          Common Stock,
          par value $.01 per share                   57,348,708





                              ACNIELSEN CORPORATION

                               INDEX TO FORM 10-Q



PART I. FINANCIAL INFORMATION                                          PAGE

Item 1. Financial Statements

Condensed Consolidated Statements of Income (Unaudited)
      Three Months Ended March 31, 1998 and 1997                        3

Condensed Consolidated Statements of Cash Flows (Unaudited)
      Three Months Ended March 31, 1998 and 1997                        4

Condensed Consolidated Balance Sheets
      March 31, 1998 (Unaudited) and December 31, 1997                  5

Notes to Condensed Consolidated Financial Statements (Unaudited)        6

Item 2. Management's Discussion and Analysis of Financial
            Condition and Results of Operations                         9



PART II.  OTHER INFORMATION

Item 6. Exhibits and Reports on Form 8-K                                12


SIGNATURES                                                              13











                                    -2-




PART I. FINANCIAL INFORMATION
Item I. FINANCIAL STATEMENTS

ACNIELSEN CORPORATION
Condensed Consolidated Statements Of Income (Unaudited)
(Amounts in thousands except per share amounts)

                                                                                   Three Months Ended
                                                                                        March 31,
                                                                       --------------------------------------------

                                                                               1998                      1997
                                                                       -----------------------    -----------------
                                                                                                   
Operating Revenue                                                             $325,801                   $324,774

Operating Costs                                                                171,974                    182,100
Selling and Administrative Expenses                                            128,876                    128,002
Depreciation and Amortization                                                   21,411                     23,850
Year 2000 Expenses                                                               3,336                          -
                                                                       -----------------          -----------------

Operating Income (Loss)                                                            204                      (9,178)


Interest Income                                                                  3,081                      2,118
Interest Expense                                                                  (284)                     (1,388)
Other - Net                                                                        101                        826
                                                                       -----------------
                                                                                                  -----------------
Other Income - Net                                                               2,898                      1,556

Income (Loss) Before Income Tax Provision                                        3,102                      (7,622)

Income Tax Provision (Benefit)                                                   1,303                      (3,506)
                                                                       -----------------          -----------------

Net Income (Loss)                                                               $1,799                     $(4,116)
                                                                       =================          =================


Net Income (Loss) Per Share of Common Stock - Basic                              $0.03                       $(.07)
                                                                       =================          =================

Net Income (Loss) Per Share of Common Stock - Diluted                            $0.03                       $(.07)
                                                                       =================          =================

Weighted Average Number of Shares Outstanding
                Basic                                                           57,359                     56,919
                Diluted                                                         59,353                     56,919


<FN>

See  accompanying  notes  to the  condensed  consolidated  financial  statements
(unaudited).
</FN>





                                                      -3-






ACNIELSEN CORPORATION
Condensed Consolidated Statements of Cash Flows (Unaudited)
(Amounts in Thousands)
    
                                                                                  Three Months Ended
                                                                                      March 31,
                                                                  --------------------------------------------------
                                                                            1998                       1997
                                                                  -----------------------    -----------------------
                                                                                                              
- - --------------------------------------------------------------------------------------------------------------------
Cash Flows from Operating Activities:
Net Income (Loss)                                                                 $ 1,799                 $ (4,116)
  Reconciliation of Net Income (Loss) to Net Cash Used In
  Operating Activities:
    Depreciation and Amortization                                                  21,411                   23,850
    Deferred Income Taxes                                                            (220)                     456
    Payments Related to Special Charges                                            (3,634)                 (12,188)
    Postemployment Benefit Payments                                                (2,486)                  (2,496)
    Net Decrease in Accounts Receivable                                             4,873                    4,283
    Net Increase in Other Working Capital Items                                   (28,117)                 (29,892)
    Other                                                                             782                    1,154
                                                                --
- - ----------------------------------------------------------------  --------------------------------------------------
Net Cash Used In Operating Activities                                              (5,592)                 (18,949)
- - --------------------------------------------------------------------------------------------------------------------

Cash Flows from Investing Activities:
Capital Expenditures                                                               (7,523)                  (9,357)
Additions to Computer Software                                                     (5,234)                  (3,752)
Decrease in Other Investments                                                         813                      901
Other                                                                              (2,921)                  (7,289)
                                                                --
- - ----------------------------------------------------------------  --------------------------------------------------
Net Cash Used in Investing Activities                                             (14,865)                 (19,497)
- - --------------------------------------------------------------------------------------------------------------------

Cash Flows from Financing Activities:
Decrease in Short-Term Borrowings                                                    (144)                  (2,646)
Treasury Stock Purchases                                                           (8,869)                       -
Proceeds from the Sale of Common Stock under Option Plans                           3,996                      448
Other                                                                                 858                      274
- - --------------------------------------------------------------------------------------------------------------------
Net Cash Used in Financing Activities                                              (4,159)                  (1,924)
- - --------------------------------------------------------------------------------------------------------------------
Effect of Exchange Rate Changes on Cash and Cash Equivalents                       (4,268)                  (4,542)
- - --------------------------------------------------------------------------------------------------------------------
Decrease in Cash and Cash Equivalents                                             (28,884)                 (44,912)
Cash and Cash Equivalents, Beginning of Period                                    205,726                  185,005
- - --------------------------------------------------------------------------------------------------------------------
Cash and Cash Equivalents, End of Period                                        $ 176,842                $ 140,093
- - --------------------------------------------------------------------------------------------------------------------

Supplemental disclosure of cash flow information:
Cash Paid During the Period for Interest                                            $ 231                  $ 1,350
Cash Paid During the Period for Income Taxes                                      $ 1,823                  $ 5,347

Noncash Investing and Financing Activities:
Acquisition of Investment and Note Receivable in exchange for                    $ 19,400                        -
   Business Assets and Liabilities assumed

<FN>
See  accompanying  notes  to the  condensed  consolidated  financial  statements
(unaudited).

</FN> 

                                    -4-



ACNIELSEN CORPORATION
Condensed Consolidated Balance Sheets
(Amounts in thousands)
[CAPTION]

- - --------------------------------------------------------------------------------------------------------------------------
                                                                                        March 31,            December 31,
                                                                                          1998                   1997
                                                                                       (Unaudited)
- - --------------------------------------------------------------------------------------------------------------------------
                                                                                                          
Assets

Current Assets
Cash and Cash Equivalents                                                              $ 176,842              $ 205,726
Accounts Receivable-Net                                                                  246,843                260,821
Other Current Assets                                                                      47,756                 38,423
                                                                                  -----------------          -------------
       Total Current Assets                                                              471,441                504,970
Notes Receivable and Other Investments                                                    29,050                 10,281
Property, Plant and Equipment-Net                                                        147,054                165,660
Other Assets-Net
Prepaid Pension                                                                           56,634                 57,425
Computer Software                                                                         26,481                 25,288
Intangibles & Other Assets                                                                53,633                 55,001
Goodwill                                                                                 211,081                220,483
                                                                                  -----------------          -------------
       Total Other Assets-Net                                                            347,829                358,197
- - --------------------------------------------------------------------------------------------------------------------------
TOTAL ASSETS                                                                           $ 995,374            $ 1,039,108
- - --------------------------------------------------------------------------------------------------------------------------
Liabilities and Shareholders' Equity

Current Liabilities
Accounts  Payable                                                                       $ 81,127               $ 86,908
Short-Term Debt                                                                           25,653                 25,957
Accrued and Other Current Liabilities                                                    295,486                313,864
Accrued Income Taxes                                                                      41,118                 42,385
                                                                                  -----------------          -------------
       Total Current Liabilities                                                         443,384                469,114
Postretirement and Postemployment Benefits                                                47,931                 49,400
Deferred Income Taxes                                                                     26,809                 27,609
Other Liabilities                                                                         29,439                 32,881
- - --------------------------------------------------------------------------------------------------------------------------
TOTAL LIABILITIES                                                                        547,563                579,004
- - --------------------------------------------------------------------------------------------------------------------------
Commitments and Contingencies
Shareholders' Equity
Common Stock                                                                                 580                    577
Additional Paid-in Capital                                                               476,573                471,493
Retained Earnings                                                                         45,419                 43,620
Treasury Stock                                                                           (12,835)                (3,966)
Accumulated Other Comprehensive Income:
       Cumulative Translation Adjustment                                                                        (51,620)
                                                                                         (61,926)
                                                                                  -----------------          -------------
Total Shareholders' Equity                                                               447,811                460,104
- - --------------------------------------------------------------------------------------------------------------------------
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY                                             $ 995,374             $1,039,108
- - --------------------------------------------------------------------------------------------------------------------------
<FN>
See  accompanying  notes  to the  condensed  consolidated  financial  statements
(unaudited).
</FN>

                                   -5-


ACNIELSEN CORPORATION
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)

Note 1 - Interim Consolidated Financial Statements

These interim consolidated financial statements have been prepared in accordance
with the  instructions  to Form 10-Q and should be read in conjunction  with the
consolidated financial statements and related notes in the ACNielsen Corporation
(the  "Company")  1997 Annual Report on Form 10-K. In the opinion of management,
all adjustments  (which include only normal recurring  adjustments),  considered
necessary for a fair presentation of financial  position,  results of operations
and cash flows at the dates and for the periods  presented  have been  included.
Certain  prior year  amounts  have been  reclassified  to conform  with the 1998
presentation.

Note 2 - Financial Instruments with Off-Balance-Sheet Risk

The Company uses foreign exchange forward  contracts to hedge  significant known
transactional  exposures.  At March 31,  1998 the Company had $30,040 of foreign
currency forward contracts  outstanding,  which mature on various dates over the
next nine months. These forward contracts mature in monthly installments through
December 1998. Any gain or loss on the forward contract is deferred and included
in the measurement of the related foreign currency transaction.

The Company does not utilize  derivative  financial  instruments  for trading or
other speculative purposes.

Note 3 - Earnings Per Share
The following  table sets forth the  computation  of basic and diluted  earnings
(loss) per share (EPS) for the quarters  ended March 31, 1998 and 1997  (Amounts
in Thousands, Except Per Share Data):


                                                                                         1998           1997
                                                                                         ----           ----
                                                                                                  
Weighted-average number of shares outstanding for basic EPS                           57,359         56,919
Dilutive effect of shares issuable as of period-end under stock option
   plans                                                                               1,994              0
                                                                               ============== ===============
Weighted-average number of shares and share equivalents for diluted EPS
                                                                                      59,353         56,919
                                                                               ============== ===============

Net Income (Loss)                                                                     $1,799        $(4,116)
                                                                               ============== ===============

Diluted earnings (loss) per share                                                       $.03         $(0.07)
                                                                               ============== ===============


No adjustments  were made to March,  1997 basic EPS to compute diluted EPS as it
would result in  anti-dilution.  As such, no adjustment  was made for options to
purchase 8,404,035 shares of common stock at share prices ranging from $11.10 to
$17.05 per share, which were outstanding at the end of March, 1997.

                                  -6-

Note 4 - New Accounting Pronouncements

The Company has adopted  Statement of Financial  Accounting  Standards  No. 130,
"Reporting  Comprehensive Income", which establishes standards for the reporting
and  disclosure  of  comprehensive  income and its  components  in the financial
statements.  This  statement  is  effective  for interim and annual  periods for
fiscal years beginning after December 15,1997. The Company's  comprehensive loss
for the  quarters  ended March 31, 1998 and 1997,  reported  net of tax, are set
forth in the following table:


(in thousands)

                                                          1998              1997
- - ----------------------------------------------     ------------------ -----------------
                                                                       
Net Income (Loss)                                            $1,799        $(4,116)

Other Comprehensive Loss, Net of Tax
   Foreign Currency Translation Adjustments                 (10,306)        (8,883)
   Unrealized Loss on Securities                                  -           (992)
                                                          ----------     ----------

        Comprehensive Loss                                  $(8,507)      $(13,991)
                                                            ========      =========


In April 1998, the American  Institute of Certified  Public  Accountants  issued
Statement  of  Position  (SOP)  98-5,   "Reporting  on  the  Costs  of  Start-Up
Activities."  The SOP,  which the  Company  plans to adopt on  January  1, 1999,
requires  that  costs  of the  Company's  start-up  activities  be  expensed  as
incurred.  The Company currently  capitalizes  certain one-time costs related to
introducing  new  services  and  conducting  business in new  geographic  areas.
Adoption of this SOP is expected  to result in a one-time,  non-cash,  after-tax
charge recorded as a cumulative effect of a change in accounting in the range of
$15,000  to  $20,000.  However,  adoption  of the new  accounting  policy is not
expected  to  have  a  material  impact  on  the  Company's  future  results  of
operations.

Note 5 - Litigation
On July 29, 1996, Information  Resources,  Inc. ("IRI") filed a complaint in the
United States  District Court for the Southern  District of New York,  naming as
defendants  D&B,  A.C.  Nielsen  Company  (which is a subsidiary  of the Company
"ACNielsenCo")  and  I.M.S.  International,  Inc.,  a  subsidiary  of  Cognizant
Corporation ("IMS") (the "IRI Action").

The complaint  alleges various  violations of the United States  antitrust laws,
including  alleged  violations  of  Sections  1 and 2 of the  Sherman  Act.  The
complaint  also alleges a claim of tortious  interference  with a contract and a
claim of tortious interference with a prospective business  relationship.  These
latter claims relate to the  acquisition by defendants of Survey  Research Group
Limited  ("SRG").  IRI alleges that SRG violated an alleged  agreement  with IRI
when it agreed to be acquired by the defendants and that the defendants  induced
SRG to breach that agreement.

IRI's complaint alleges damages in excess of $350 million,  which amount IRI has
asked to be trebled under the antitrust laws. IRI also seeks punitive damages in
an unspecified amount.




                                     -7-

By  notice of motion  dated  October  15,  1996,  defendants  moved for an order
dismissing  all  claims  in the  complaint.  On May 6,  1997 the  United  States
District  Court for the  Southern  District of New York issued a decision on the
motion to dismiss.  The Court dismissed IRI's claim of attempted  monopolization
in the United States with leave to replead  within sixty days.  The Court denied
defendants'  motion with respect to the remaining  claims in the  complaint.  On
June 3, 1997,  defendants filed an answer and  counterclaims.  Defendants denied
all material  allegations of the complaint.  In addition,  ACNielsenCo  asserted
counterclaims  against  IRI  alleging  that IRI has made  false  and  misleading
statements about ACNielsenCo's  services and commercial activities and that such
conduct  constitutes  a violation of Section  43(a) of the Lanham Act and unfair
competition. ACNielsenCo seeks injunctive relief and damages.

On July 7, 1997, IRI filed an amended  complaint seeking to replead the claim of
attempted  monopolization in the United States,  which had been dismissed by the
Court in its May 6, 1997  decision.  By notice of motion  dated August 18, 1997,
defendants moved for an order dismissing the amended claim. On December 1, 1997,
the Court denied defendants' motion.

In  connection  with the IRI  Action,  D&B,  Cognizant  Corporation  (the parent
company of IMS) and the Company have entered into an Indemnity and Joint Defense
Agreement (the "Indemnity and Joint Defense  Agreement")  pursuant to which they
have agreed (i) to certain arrangements  allocating potential  liabilities ("IRI
Liabilities")  that may arise out of or in  connection  with the IRI  Action and
(ii) to conduct a joint defense of such action. In particular, the Indemnity and
Joint  Defense  Agreement  provides  that  the  Company  will  assume  exclusive
liability  for IRI  Liabilities  up to a maximum  amount to be calculated at the
time such liabilities,  if any, become payable (the "ACN Maximum  Amount"),  and
that Cognizant and D&B will share liability equally for any amounts in excess of
the ACN  Maximum  Amount.  The ACN  Maximum  Amount  will  be  determined  by an
investment  banking firm as the maximum  amount which the Company is able to pay
after giving effect to (i) any plan submitted by such  investment  bank which is
designed to maximize the claims paying ability of the Company without  impairing
the investment  banking firm's ability to deliver a viability opinion (but which
will not require any action requiring stockholder approval), and (ii) payment of
related fees and expenses.  For these  purposes,  financial  viability means the
ability of the Company, after giving effect to such plan, the payment of related
fees and expenses and the payment of the ACN Maximum Amount, to pay its debts as
they become due and to finance the current and anticipated operating and capital
requirements of its business,  as reconstituted by such plan, for two years from
the date any such plan is expected to be implemented.

The Indemnity and Joint Defense  Agreement also imposes certain  restrictions on
the payment of cash  dividends  and the  ability of the Company to purchase  its
stock.

Management  of ACNielsen is unable to predict at this time the final  outcome of
the IRI Action or whether its resolution could  materially  affect the Company's
results of operations, cash flows or financial position.








                                      -8-


The Company and its  subsidiaries  are also involved in other legal  proceedings
and  litigation  arising in the ordinary  course of business.  In the opinion of
management,   the  outcome  of  such  current  legal  proceedings,   claims  and
litigation,  if decided adversely,  could have a material effect on quarterly or
annual  operating  results  or cash  flows  when  resolved  in a future  period.
However, in the opinion of management,  these matters will not materially affect
the Company's consolidated financial position.


Item 2. Management's  Discussion and Analysis of Financial Condition and Results
 of Operations (Dollar amounts in thousands, except per share data)

Net  income  for the first  quarter  was $1,799 or $0.03 per  diluted  share,  a
$5,915,  or $0.10 per share  improvement  over the  first  quarter  1997 loss of
$4,116 or $0.07 per diluted  share.  Net income  included an after-tax  negative
currency translation impact of $1,317, or $0.02 per diluted share.

Revenue for the quarter ended March 31, 1998 was  $325,801,  an increase of 0.3%
from the first quarter of 1997,  reflecting the negative impact of a strong U.S.
dollar.  Driven by solid growth in all regions,  revenue  advanced 9.4% in local
currency.

Operating  income was $204, an increase of $9,382 over 1997,  despite a negative
currency  translation  impact of $2,281.  Strong local currency  revenue growth,
coupled with  improved  operating  efficiency  across all three of the Company's
regions,  drove the substantial increase.  Excluding Year 2000 costs,  operating
income increased $12,718 over 1997 to $3,540.

Other  income-net was $2,898,  compared with $1,556 in the first three months of
1997, primarily reflecting lower interest expense on lower borrowings and higher
interest income.

The  Company's  operating  results by  geographic  region for the  quarters  
ended March 31, 1998 and 1997 are set forth in the table below.


(in thousands)

                                                    Operating Revenue             Operating Income
                                                                                       (Loss)
                                                -------------------------     ------------------------
                                                    1998          1997           1998          1997
                                                                                  
United States                                     $83,167       $73,307         $5,785           $450
Canada/ Latin America                              48,066        48,059          5,436          2,831
                                                  --------     ---------       --------        -------
    Total Americas                                131,233       121,366         11,221          3,281
Europe, Middle East & Africa                      131,598       133,625         (5,037)        (6,998)
Asia Pacific *                                     62,970        69,783         (2,644)        (5,461)
                                                  --------     ---------       --------        -------
   Subtotal                                       325,801       324,774          3,540         (9,178)
Year 2000 Costs                                         -             -         (3,336)             -
                                                 ---------     ---------       --------        -------

   Total                                         $325,801      $324,774           $204        $(9,178)
                                                 ========      ========         =======       ========

         *Includes ACNielsen Japan





                                     -9-


The following discusses results on a geographic basis:

Total Americas revenue  increased 8.1% to $131,233 from $121,366.  Excluding the
impact of  currency  translation,  revenue  grew  10.8%.  Operating  income  was
$11,221,  a $7,940  improvement  over the prior year,  including a $735 negative
foreign translation impact.

In the United States, revenue grew 13.5% to $83,167, reflecting continued growth
in  account-level  information,  consumer panels and the addition of new revenue
from ACNielsen EDI, acquired in December.  Excluding ACNielsen EDI, U.S. revenue
grew 10.5%.  Operating  income was $5,785,  an increase of $5,335 over the prior
year.  The gain  was  driven  by  revenue  growth,  continuing  improvements  in
operating efficiency and additional income from ACNielsen EDI.

In Canada  and Latin  America,  reported  revenue  of  $48,066  was  essentially
unchanged,  due to a negative  foreign  translation  impact of $3,284.  In local
currency,  revenue grew 6.8%. The increase in local currency revenue, even after
the transfer of ACNielsen's Latin American media  measurement  businesses to the
IBOPE Media Information joint venture,  resulted from higher retail  measurement
sales  in  Canada,  Mexico,  Brazil  and  Colombia,  and  revenue  from a  major
customized research project in Mexico. Excluding the transferred media business,
revenue grew more than 13% in local currency.  Operating income increased 92% to
$5,436 from $2,831 in 1997, including a $735 negative impact of foreign currency
translation.  The improvement was the result of  local-currency  revenue growth,
improved  operating  efficiency and the elimination of losses from the Company's
Latin American media measurement business.

Revenue in the Europe,  Middle East & Africa  ("EMEA")  region  declined 1.5% to
$131,598,  from $133,625 in 1997,  due to a $12,922  negative  impact of foreign
currency translation.  Revenue for EMEA grew 8.2% in local currency,  reflecting
continuing growth in the United Kingdom, France and in the Nordic region; nearly
40%  growth in Eastern  Europe;  revenue  from  businesses  in South  Africa and
Israel, acquired in last year's second quarter; and the addition of revenue from
ACNielsen  EDI's  European  operations.  Excluding  the impact of  acquisitions,
local-currency  revenue  grew 3.6%.  EMEA  reduced  its  operating  loss for the
quarter $1,961,  to $5,037,  despite a negative currency  translation  impact of
$478. The improvement was the result of local-currency revenue growth, increased
productivity  and lower costs,  as the region  continued to make progress on its
turnaround.

Asia Pacific's revenue decreased 9.8% to $62,970 from $69,783,  due to a $13,416
negative impact from currency translation. Revenue for Asia Pacific grew 9.5% in
local currency due to solid growth in Southeast Asia,  China,  Hong Kong and New
Zealand,  and from  ACNielsen's  multi-country  research  business.  The  region
reduced  its  operating  loss from $5,461 to $2,644,  despite a $1,068  negative
currency  translation  impact.  The  improvement  was the result of productivity
gains,  improved  operating  efficiency,  lower  costs  and a  more  disciplined
approach to customized research.

In Japan,  continuing efforts to reduce costs and improve efficiency contributed
to the region's  overall income  improvement  in the first  quarter.  Additional
operating improvements,  from actions announced at the end of 1997, are expected
to be realized in the second half of 1998.




                                   -10-


Liquidity and Capital Resources
Three Months Ended March 31, 1998 and 1997

Net cash used in  operating  activities  for the  quarter  ended  March 31, 1998
totaled  $5,592,  compared with $18,949 for the  comparable  period in 1997. The
change  primarily  is the result of improved  operating  results  (net income of
$1,799 in 1998 as compared  with a net loss of $4,116 in 1997) and a decrease in
payments related to special charges ($8,554).

Net cash used in  investing  activities  totaled  $14,865 for the quarter  ended
March 31, 1998, compared with $19,497 for the comparable period in 1997.

Net cash used in  financing  activities  for the quarter  ended March 31,  1998,
totaled  $4,159,  compared with $1,924 for the  comparable  period in 1997.  The
increase in the cash used of $2,235 primarily reflected the purchase of treasury
stock  ($8,869)  offset by an increase in proceeds from the sale of common stock
under option plans ($3,548) and a reduction in the amount of cash used to retire
short-term borrowings ($2,502).

During  the first  quarter  of 1998,  the  Company  became a partner  in a joint
venture that provides media  measurement  services in Latin  America.  The joint
venture,  IBOPE Media Information,  will offer television  audience  measurement
(TAM), radio audience measurement (RAM), and advertising expenditure measurement
services  (AEM) in  various  Latin  American  markets.  Under  the  terms of the
agreement,  the Company received an 11% equity interest in the joint venture and
a $9,400 interest  bearing note in exchange for the Company's Latin America TAM,
RAM and AEM business assets and the assumption of certain transition liabilities
in a non-cash transaction. The first quarter 1998 financial statements reflect a
preliminary  allocation of the business assets  exchanged that will be finalized
later  in the  year.  The  Company  did  not  recognize  a gain  or  loss on the
transaction.

Year 2000

The Company relies on software and related  technologies in the operation of its
business.  Based on a comprehensive  assessment,  the Company determined that it
will be required to modify or replace  significant  portions of its  software so
that its computer systems will be Year 2000 compliant.  The Company is utilizing
internal and external  resources  to execute its Year 2000  compliance  program.
Third-party  contract   programmers  have  been  retained,   and  are  presently
renovating  and  testing  software.  Renovation  of  code  is  scheduled  to  be
substantially  complete by year end 1998, with testing and implementation of new
programs to be completed by mid-1999.  The Company  currently  believes  that it
will be able to modify or replace its  affected  systems in a timely  manner and
with no significant disruptions to its operations.

Preliminary  estimates  of the total Year 2000  compliance  costs to be incurred
with respect to the  affected  systems  approximate  $15,000 to $20,000 over the
costs of normal software upgrades and replacements. Maintenance and modification
costs will be  expensed as  incurred,  while the costs of new  software  will be
capitalized  and  amortized  over the  software's  useful  life.  Such costs are
expected to be  incurred  primarily  in 1998 and  totaled  $3,336 and $0 for the
three months ended March 31, 1998 and 1997, respectively.



                                   -11-


The  Company  also is  communicating  with  its  data  suppliers  and  customers
regarding the Year 2000 issue. Failure by data suppliers to successfully address
the issue could result in delays in data  becoming  available to the Company for
use in its  products and  services.  Failure by customers  could  disrupt  their
ability to maximize  their use of such  products  and  services.  The Company is
currently unable to determine the effect,  if any, that such failures might have
on the Company's operations or future business results.

PART II.  OTHER INFORMATION

Item 6. Exhibits and Reports on Form 8-K.

(a)     Exhibits.
         10(g)   1996 ACNielsen Corporation Non-Employee Directors' Stock 
                    Incentive Plan (As amended February 19, 1998)

         10(i)   1996 ACNielsen Corporation Key Employees' Stock Incentive Plan
                    (As amended February 19, 1998)

         (27)    Financial Data Schedule (filed electronically)

(b)     Reports on Form 8-K.

        There were no reports on Form 8-K filed during the quarter ended March
31, 1998.























                                 -12-





                                                    SIGNATURES



Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.




                                        ACNIELSEN CORPORATION
                                                   (Registrant)

Date:  May 8, 1998        By:           /s/ Robert J. Chrenc
                                        ---------------------------
                                        Robert J. Chrenc
                                        Executive Vice President
                                        and Chief Financial Officer



Date:  May 8, 1998        By:           /s/ Michael S. Geltzeiler
                                        ------------------------------------
                                        Michael S. Geltzeiler
                                        Senior Vice President and Controller
















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