Melco Audiophile NAS

[suffolk tony]

This is probably nothing to with the Minimserver installation, but I seem to be having problems backing my Melco up. I do have onebackup disk, a 1.5 TB, 2.5 usb powered job, that seems to work OK, but so far I've tried three other disks, all working fine on both Mac and PC, which either aren't recognised or get a short way through the backup befor reporting "error 033", an input/output error. I've tried formatting these disks on the Melco, the PC, and the Mac as FAT32, with no joy.

I'm really not comfortable having to rely on just one backup. Anyone else having issues?