Odd floppy drives (was: Orbis

Sun Sep 25 19:19:12 CDT 2005

On 9/25/2005 at 10:34 PM ard at p850ug1.demon.co.uk wrote:

>Since both 720K and 1.44M 3.5" disks (on a PC) rotate at 300 rpm, I am 
>trying to figure out why you'd want a 360rpm 3.5" drive. I've never seen 
>one...
>
>(600 rpm is another matter...)

You've obviously never run into a NEC 9800 PC (or just about any other version of Japanese MS-DOS) diskette.  77 cylinders of 5x1024 sectors, spinning at 360 RPM, just like an 8" drive.

Most USB drives understand this format automatically.

Cheers,
Chuck