On 4/26/07, Jules Richardson <julesrichardsonuk at yahoo.co.uk> wrote: Nope. You do want 512 bytes per sector. Bog standard. I've attached everything from 20MB up to 4GB drives onto my Amigas from the A1000 up through my A4000, and the only time things were ever fiddly was with pre-capacity-reporting drives or non-SCSI controllers like the A2090. If you have something as modern as an A590 and any embedded SCSI drive, it should work as described in the A590 docs. There's probably a copy of the A590 prep disk running around. I think you might need that for Kickstart/AmigaDOS 1.3, but by 2.0, ISTR, the OS knew about the A590/A2091 from the get-go. If you happen to have a Kickstart 1.2 ROM in your A500, you won't be able to autoboot the hard disk, but you will be able to access it after booting with a boot floppy. Perhaps. They could also be left running until they die. We were losing an average of one Seagate 72GB UltraSCSI drive per month at the Pole. All of the 9GB drives through 146GB drives failed at a combined rate of less than one every two months, except for the 73GB drives. It wasn't just that we had more 73GB drives than any anything else - on a per-unit basis, the failure rate was dramatically higher in the same environment. They won't be of much use in your Amiga anyway. ;-) -ethan