At 10:29 AM 6/19/97 -0400, you wrote: The atari ST could always (well, production models on, anyway) read/write PC floppies. Formatting, however, was initially a problem. It seems there's an unused field somewhere in the admin stuff on a pc floppy that Atari figured didn't matter. So they left it blank. But, for some reason, IBM machines needed some value in there. (I'm probably way oversimplifying, and making errors...) So floppies formatted on the atari worked fine on the atari, but if you wanted to use the floppy on both machines, you needed to format it on the PC (or use a third party formatter that fixed the problem.) Some later version of TOS (1.4?) fixed this. --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad sinasohn(a)crl.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.crl.com/~sinasohn/