Oh, I don't know, it's just been tested on PAL.
I just tried it on NTSC in VICE and it worked fine...
How are you trying to run it? Emulation (which emulator) or original hardware (what peripherals)?
I'm using my Backbit pro.
On my breadbin
Which disk did you try?
I used both files. I haven't tried running them off a burned disk yet though.