< Just remember that they're hard sectored disks with 10 sectors. I just <found a box of them in a surplus store a couple of days ago. Apple or PCC/altair minifloppy? if yes then wrong. They were both soft sectored. It was the 8" altair disks that were hard sectored and it was 26 sectors if memory hasn't lost a bit. Somewhere in the junkbox is a Pertec minifloppy controller for s100 that how I know, it's 1771 based. 10 sector was most commonly Northstar* MDS. Allison