It does not rely on any specific encoding, length of bit or anything. The timing I believe is done via the 'index hole' to determine when it has read an entire revolution of the disks and has therefore captured all the magnetic transisitons.
As it doesn't look at the 'bits' at all, it can't misinterpret them, CGR, MFM, or whatever, it's just a magnetic transition. Think of it as a making a mold of a sculpture. You don't have to know what it is to replicate it.
:) Bryan Parkoff wrote:
Please tell me how can you copy Apple II software diskettes in PC floppy
drives using Deluxe Option Board, but I doubt.