I'm not sure if that's the case, because I had a Seagate ST52160N and an
old Maxtor 120MB drive that I swapped freely between my Mac and a Sun
workstation with no problems at all.

That's a good thought though, I'll have to remember that.

> A problem that is not always obvious is that disks from other machines are
> sometimes low level formatted with block sizes other than 512 bytes.
> 
> A friend found a "Video Cube" in the trash not too long ago, which had
> four ST12550N's and a number of ST15150N's; the 12550 were low level
> formatted with 2048 bytes per sector (I suppose for video use), so I
> needed to re-low level format them in order to get Apple HD SC (patched)
> to work with them.
> 
> Although neither Apple HD SC nor Drive Setup can do this, FWB HD Tool(Kit?
> Box?) does this. So do Amigas.
> 
> If the other suggestions don't work, try this.
> 
> Good luck,
> John Klos
> -- 
> Those who do not understand Unix are condemned to reinvent it, poorly.
>                 -- Henry Spencer
> 
>