Hi all, Think I've discovered another issue with the floppy driver..... Basically, if won't play ball with a 360K 5.25" Matsushita drive (JA-551). The mobo's BIOS is configured for one drive (A:) - 360K 5.25" There's no secondary FDCs, and the JA-551 is the only FDD connected. If I boot FreeDOS (1.0 and an earlier version), it formats, reads, writes a number of disks perfectly If I then boot Linux (System Rescue CD 1.1.4), I am unable to mount or format any DSDD disk :-( With System Rescue CD, I have to modrobe the floppy module; and that then gives me a /dev/fd0d360 ....with minor number 4; which is correct, as I understand things. If I then format with : fdformat /dev/fd0d360 ....it fails everytime with FDFMTTRK : Input / Output error It also fails with : fdformat /dev/fd0 It's the same story with Slackware 12.1 (booted from CD) Under FreeDOS, I can simply type : format b: /u ....and it formats perfectly everytime incidentally, FreeDOS sees the FDD on b: because FreeDOS itself uses A: (bootable floppy image on the FreeDOS CD) Earlier in the day, I was formatting 1200Kib disks in a HD 5.25" FDD under System Rescue CD, so the problem is confined to 360K DSDD FDDs :-( If further info is needed; please don't hesitate to ask Cheers for now Justin