Michael,
> The very first RWTS may have been 4+4 coding, but Woz quickly progressed
> to 5+3, then later to 6+2. The final iteration was the ProDOS-style
> RWTS that decodes nibbles to data on the fly.
It looks like it is written 4+4 in 10 sectors for all tracks on DOS 1 +
2. Then Woz found a way to use 5+3.
Look at website -- http://en.wikipedia.org/wiki/Apple_DOS.
Bryan Parkoff