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EXHIBIT 23.1
INDEPENDENT AUDITORS' CONSENT
Compensation Committee of the Board of Directors
Input / Output, Inc.
We consent to the incorporation by reference in the registration statements (No.
33-54394, No. 33-46386, No. 33-50620, No. 33-85304, No. 333-14321 and No.
333-24125) on Form S-8 of Input / Output, Inc. of our report dated September 22,
2000, relating to the statements of net assets available for plan benefits of
the Input / Output, Inc. Employee Stock Purchase Plan as of June 30, 2000 and
1999, and the related statements of changes in net assets available for plan
benefits for the years ended June 30, 2000, 1999 and 1998, which report appears
in the Form 10-K/A-1 of Input / Output, Inc. for the fiscal year ended May 31,
2000.
/s/ KPMG LLP
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Houston, Texas
October 30, 2000
