Wrong File Error on Drum Samples

I loaded part of a battery drum library on to my hardrive on my mpc. It was a lot of drums, but after I noticed that most of the drums dont play or load on my mpc. they will play on my computer but on the MPC they wont play in load mode and when i try to load them i get a "Wrong File" error.

All the files are .wav

Does anyone know why this is happening or how to fix it?

maybe the files are 24bit?

oh yea that might be it let ill check