Date   : Tue, 12 May 2009 10:29:19 +0100
From   : hideki.adam@... (adam colley)
Subject: My Rodime Wont Spin

Hihi

2009/5/12 Julian Stenning <julian_stenning@...>:
> Lastly, I do have an old Western Digital MFM 30Mb 'FileCard' drive (rescued
> from an old Amstrad PC1640) that spins up when connected to the Acorn
> winchester PSU and adaptec board, but Superform wont complete a format. The
> drive parameters on the unit read 'H4, Wpc 783, Cyl 782, LZ 783, Spt 26'.
> Can I use this? I seem to think I have in the past, but that may be a false
> memory.

That's an RLL drive, you can use it with an MFM controller but will
lose a third or so of the space and you must set it to 782 cylinders,
4 heads, 17 sectors per track (rather than the 26 indicated), this
will give you a hair under 26MiB of space rather than the just under
40MiB the drive claims.

-- 
Hideki.Adam