As an aside, the MMULib's are useful, but they squeeze in a wedge of OS stuff that can screw with booting, so use carefully. IDEFix is a great bit of software for getting different IDE/ATAPI kit to work; you can get the registration code from Claonto's Amiga Forever CD. PFS has a disk doctor available, but for a non-hardware or hard core Amiga person, I'd stick with FFS (v45.16) and Dave Haynie's DiskSalv.