CompuPro floppy controller differences

On 9/18/2006 at 8:06 AM Allison wrote: There were two "standard" versions of the 720K 3.5 format, differing in the cluster and FAT size. One was the definition put out by IBM sometime around MS-DOS 2.1 and the other, by Microsoft in MS-DOS 4.00 (which was an abomination). So, you haven't used 3.5" 1.3MB DOS diskettes? (2x8x1024)? Many USB floppies and Superdrives support the DOS-V format under Windows 2K and XP; though FORMAT doesn't appear to understand how to initializae blanks. ..and let's not forget the short-lived "special" distribution formats from IBM and Microsoft that got around 1.8MB per 3.5" floppy by using more sectors per track+interleave+skew(MS DMF) or differing sector sizes (IBM XDF). I suppose you could call those "standard", since they were officially-endorsed formats. Cheers, Chuck