CP/M

yes, i did the same with apple ][ floppies. i never used the special tool to punch the index hole as a sharp x-acto knife worked well. i do have one box of flippies at home and i never had a problem with using the "wrong" side. In a message dated 98-06-17 12:33:56 EDT, philip belben put forth: << Likewise the Commodore 8-bitters. In the early 1980s, I was one of the first in my school (I was 14 or so at the time) to own a floppy disk (yes, a disk, not a drive). I had heard of "flippy disks" with two index holes, which you could turn over, thus using both surfaces in a single sided drive. But I didn't realise you needed to give it a second index hole. So I just cut a second write-permit notch and turned it over. It worked! Commodore 4040 didn't use the index hole! Philip. >>