INPUT/OUTPUT, INC.
12300 Parc Crest Drive
Stafford, Texas 77477
(281) 933-3339
May 6, 2005
| Re: | Input/Output, Inc. | |
| Registration Statement on Form S-3 | ||
| Registration No. 333-123632 | ||
| Securities and Exchange Commission | VIA EDGAR | |
| 450 Fifth Street, N.W. | ||
| Judiciary Plaza | ||
| Washington, D.C. 20549 |
Ladies and Gentlemen:
The undersigned hereby requests that the effectiveness of its Registration Statement on Form S-3 (Registration No. 333-123632) be accelerated so that such Registration Statement will become effective at 4:30 p.m., EDT, on May 9, 2005, or as soon thereafter as practicable.
| Very truly yours, INPUT/OUTPUT, INC. | ||||
| By: | /s/ DAVID L. ROLAND | |||
| David L. Roland | ||||
| Vice President, General Counsel and Corporate Secretary | ||||
