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HOUSTON, Oct. 15 /PRNewswire/ — Input/Output, Inc. (NYSE: IO) announced
today that it will host a real-time webcast of its third quarter earnings
release conference call. This webcast is scheduled for October 25th, 2001 at
11:00 am Eastern Daylight Time. The earnings release is scheduled to be
issued the same day before the market opens.

This live broadcast of the I/O quarterly conference call will be available
on-line at www.i-o.com or www.streetevents.com . Listeners should go to the
web site at least 15 minutes before the broadcast to register, download and
install any necessary audio software. In addition, the webcast will be
replayed for one week after the original call.

There will also be a telephonic replay of the conference call for one week
after the original call. The phone number for the replay is 800-756-4546.

Input/Output, Inc. is an industry leader in seismic acquisition imaging
technology for land, marine and transition zone exploration, and reservoir
monitoring. The Company specializes in 3D, 4D and multi-component
technologies that continuously improve image quality and acquisition economics
for our clients. Additional information on Input/Output, Inc. is available on
the Internet at www.i-o.com or contact us at ir@i-o.com.

SOURCE Input/Output, Inc.

CONTACT: Kim Fairweather, Marketing Communications Manager of
Input-Output, Inc., +1-281-552-3013, or Kim_Fairweather@i-o.com /