On Thu, 10 Jan 2019, Guy Dunphy wrote:
All my Apple II disks are DOS 3.2. When 3.3 came out, it was a) too much trouble to convert everything up, and b) ... read that 'missing the wave' story. It gave me a sour feeling about 3.3. Totally my own fault, but still.
If you get any of the existing commercial devices that can read Apple II disks, . . . MOST, if not all, of the ones available are 16 sector. Although the hardware could handle 13 sector, you would need to modify the software. Even the upper level (file system) portions of the code are likely to be hard-coded for 16 SPT.
For the MFM formats, avoid USB drives. They tend to be designed solely as PC peripherals, and lack flexibility for even other sector sizes! For FM and 128 bytes per sector (problematic for most PC FDC), check Dave Dunfield's site for MFM imaging utility, and test programs for some FDC capabilities.
-- Grumpy Ol' Fred [email protected]
