1.44 Mb floppys are not supported either, so only 360 kb floppy images work. Which is, in fact, exactly what the original PC XT did. The speed setting is very handy, though the old PC XT certainly did not have that!

Works well with 360 kd DOS disk images, almost all PC XT games and programs work fine. No support for 1.2 Mb 5.25 disk images, it looks for the root directory on cluster 4 and finds the FAT there. 1.44 Mb disks I did not test, I have to put the images on a 1.44 Mb floppy to extract them from the old 286 where my XT prgrams reside. Sound is good in principle, but the continuous rattle in the background is a bit annoying. An option "double screen" size would also be handy. But for such a small program (29 kb) the performance is excellent.