Hi everyone! First things first, thank you for making this fantastic core. I'm having a lot of fun experimenting with what an original XT machine can do.
I tried to look on this forum for the same topic without success.
Certain floppy images (720K images to be exact) do not work well with the core: they give a general failure error when trying to access certain files. They do work in DosBox though, and I can access them with my modern computer just fine.
I am running the Tandy BIOS with Tandy-branded DOS 3.30, but the same issue happens with the original IBM bios and non-branded DOS.
Is this a limitation of the original hardware, or it could be that the images are made with a later version of DOS and are thus incompatible?