Hi guys, I'm pretty sure someone posted this on-list in the past (possibly Chuck?), but I can't find it in my local archive or on the classiccmp.org list archive... I've got a Mitsubishi MF356C-799MA disc drive, part number 72X6101. This is apparently a 2.88MB disc drive from an IBM PS/2, and was (near as I can tell) also sold as an FRU under part number 64F0204. Here's where the confusion starts: it uses a single 34-pin connector for both power and data. I found this site: http://ohlandl.ipv7.net/floppy/Floppy_Pinouts.html#34-pin_MS And another page with similar information: http://ohlandl.ipv7.net/floppy/floppy.html). These give the 34-pin interface pinouts, including the details for the Electronic Eject drive (the 92F0132, aka Sony MP-F40W-07 / MFD-40W-05) and a stern warning to leave pin 6 (+12V) open... Catch is there's nothing about Data Rate Select on pin 2 (which appears to be 0V for 720K and 1.44MB, or high/floating for 2.88MB), or the Media Type ID and Drive Type ID pins. Basically what I want to do is put this drive in a PC, format a couple of 2.88MB discs, then wire it up to the DiscFerret and make sure the acquisition engine and decoder can handle the higher data rate. The timing analyser and simulator say it should work, but I'd actually like to see it working :) Thanks, -- Phil. classiccmp at philpem.me.uk http://www.philpem.me.uk/