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Dear JTS Shareholder:

Your proxy vote is very important to us. Please complete your proxy card and
mail it as soon as possible, or no later than Monday July 7, 1997, in order to
ensure that your vote is represented.

If you have misplaced your proxy, please contact JTS Investor Relations at 
408-468-1621.

Thank you for your support.

Sincerely,


/s/ Kimberly Toney
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Kimberley Toney
Investor Relations