I'm sending this one message to everyone who replied. Thanks guys... Anyway, here is everything I know about these discs. Unfortunately, the guy who knew about these is long gone (the usual ;). They are Canon CanoFile 502M Magneto Optical discs. Double sided, 256 MB per side. Physically they are 5 1/4" x 6". They were used in a Canon document imaging system. Don't know what OS it ran on. As it stands right now, it appears that the discs with the data we need aren't here. But we still want info about what we may need, and how much it'll cost, if we do need to read these in the future. Thanks again... -- --- Dave Woyciesjes --- ICQ# 905818 --- AIM - woyciesjes