I managed to make my mpc’s cf card unbootable last week with a bad unmount (that’s what sh… nm).
I’m running a program testdisk to try and see if I can recover some stuff. Some of it was sort of backed up as ableton live projects, but I’ve lost a bunch of new stuff.

Anyhoo… that is all to say, I feel your pain, homie!
p.s. if any one out there knows about rebuilding fat 16 boot sectors / rebuilding FAT tables than LMK.