Here's a good one: We have an XP PRO system (MSI mobo, P4) with two recognized floppy disk drives, A: 3.5, B: 5.25. When we boot to PC DOS 7.0 on the A: drive, it doesn't recognize the B: drive, but Anadisk, which we run from a ramdisk (C:) reads all the sectors, finds all of the formatting information, and lets us look at each sector, each file whether deleted or not, and the FAT. Why doesn't DOS recognize the B drive? Could it be the DS0, DS1, DS2, DS3 selector? Would XP recognize the drive if the DS selector was incorrect? Would Ananisk? Any ideas? We are using Anadisk because some of the diskettes are copy protected and some are CP/M and maybe Pascal P code. Anadisk also allows us to format the diskettes to erase all of the old data. And Anadisk doesn't run under XP. Because we can read DOS flavored diskettes on XP, and because Anadisk can read the diskettes and because the drive worked on the machine from which we pulled it, we think the drive and cables are good. And the POST tickles both drives on boot up, too. TIA.