RE: CBM-900 floppy disk format/encoding

From: Hoffmann-Vetter, Martin <*martinhv_at_arcor.de*> Date: Sat, 29 Oct 2011 02:29:17 +0200 Message-ID: <002801cc95d1$f1db5b10$1b09a8c0@mhvnb10> · martinhv_at_arcor.de

Hello Uffe,

> I guess that track 0 is the same pos for both 96 and 100 TPI

That's wrong. Track 0 of 96 TPI drive is track 3 or 4 of 100 TPI drive!

Have a look at some german postings:
*
http://newsgroups.derkeiler.com/Archive/De/de.sci.electronics/2009-02/msg027
36.html
* http://www.freak-search.com/de/thread/17021/sord_computer
or
* http://www.classiccmp.org/pipermail/cctech/2007-August/044067.html

Greetings

Martin

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