Date   : Tue, 22 Jul 1986 21:28:39 GMT
From   : Harald Striepe <striepe%muscat.dec@BRL.ARPA>
Subject: Re: commodore128 disk format

       I do not know whether the new drives for the 128 support standard
       formats,  the older drives (1541) essentially contained the DOS in
       ROM inside the drive,  you were stuck with a fixed file structure.
       It also used group coding,  which does not follow standard FM and
       MFM formats (group coding is also used by Apple,  and was used by
       the VICTOR 9000 to achieve high storage densities).  The 1541 also
       uses varying rotational rates for different tracks.  In other words,
       standard drives cannot create disks for the commodore standard.
-- 
Harald Striepe
DEC Corporate Software Products Group, Santa Clara, CA
decwrl!muscat!striepe, decwrl!dec-rhea!dec-winery!striepe, WINERY::STRIEPE