Wren IV variants

[mr at racal-itd.co.uk]

Boring question time again. I'm tracking down Wren IV sources (i.e. the
"327Mbyte" drive from Sun) and have been confused by what I have been
offered. My preferred supplier says that they have 94171-350 and 94171-376
drives, but no 94171-344. /etc/format.dat explicitly references the -344
variant, which this supplier claims has never existed.

I'd just like to know (a) what I can safely use as a 327 look-alike and
(b) whether I can win any more disk space using these other variants.
format.dat entries would be most welcome.

thanks,
        Martin Reed, Racal Imaging Systems Ltd
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