For games, i use hd disks without taping the hole and they work perfectly(writing and adf image to the floppy with a catweasel), but for working with the disk at os level, i.e working with files, etc.. you may tape the hole, if not you may encounter problems of read/write errors and that. There is no other trouble with hd disks. I have been using this type of disks since i bought my catweasel and i have no problems. I'm using a REV 6A A500 with 1mb ram(512+512) with the standard chinon drive and using the 1.3 rom.
