Changes
/* HD floppy disks */
With a real PC HD floppy drive, this requires some mechanical modifications, and you may get into trouble if the spinning speed is not fast enough. But with the Gotek, this is not a problem. You can have as many sectors as you want, and the Gotek will generate the index pulse (simulating the floppy completing a turn) after it has sent them all. So it is essentially emulating a floppy that turns very slowly. The FDC has no problems handling that, but you may need to be a bit more relaxed than usual with the timeouts, as it will be some time before the sector you need will pass in front of the drive head, and the index pulse will also be slower than usual.
<br>
== PC Floppy Disks ==
This chapter is relevant as many CPC users are using PC floppy drives on their CPC.
=== 5.25inch PC diskette format ===
The IBM PC supports two standard diskette formats on a 5.25 inch drive:
* The first is double sided, double density, 40 cylinders, which yields a capacity of 360KB per diskette. This is the original IBM PC format. The double density drive rotates at 300 RPM.
* The second format was introduced with the PC-AT. It is double sided, quad density, 80 cylinders, with a total capacity of 1.2 MB. The high density drive rotates at '''360 RPM''', so only 15 sectors can be written on a track instead of 18.
=== 3.5inch PC diskette format ===
The IBM PS-2 introduced two standard 3.5 inch diskette formats:
* The first is a double sided, double density, 80 cylinders, format yielding a capacity of 720KB. The double density drive rotates at 300 RPM.
* The other is double sided, quad density, 80 cylinders, with a total capacity of 1.44 MB. The high density drive rotates at 300 RPM.
<br>
