This is because, like Apple ][ drives, they used GCR encoding and looked for sync bytes on the disk rather than implementing additional hardware to look for the index hole.
Sellam On Thu, Sep 1, 2022 at 10:08 AM geneb via cctalk <cctalk@classiccmp.org> wrote: > On Thu, 1 Sep 2022, Pete Turnbull via cctalk wrote: > > > On 01/09/2022 14:31, Kenneth Gober via cctalk wrote: > >> On 5.25" diskettes punching a notch to enable use of the second side > >> worked due to 2 factors: > >> > >> First, the index hole was commonly unused on 5.25" systems so it > >> didn't matter that the index hole was in the wrong place when the > >> diskette was flipped over. > > > > It's my experience that the index hole is used, and does matter, on > pretty > > much all 5.25" systems except Apple ][s. > > Commodore drives didn't use it either. > > g. > > -- > Proud owner of F-15C 80-0007 > http://www.f15sim.com - The only one of its kind. > http://www.diy-cockpits.org/coll - Go Collimated or Go Home. > Some people collect things for a hobby. Geeks collect hobbies. > > ScarletDME - The red hot Data Management Environment > A Multi-Value database for the masses, not the classes. > http://scarlet.deltasoft.com - Get it _today_! >
