loading programs/wrong file!!

so i just spent about 3 hrs editing drum samples and saving programs for them. and then when i tried to load the program it says wrong file!! :? i know that i have saved them, so i check to see if theyre in the sample folder and only about a 1/2 of the samples i edited are saved but not as a program just the samples individually......i have lots of space on my 2 gb CF card as well, has anyone else encountered this before?
thanks in advance

try rendering the samples to 16 bit.

how do you do that exactly???

you can use software. if you dont use a daw. try downloading the demo for goldwave(google it). it has a lengthy demo period and does batch renderings.

i had the same problem with a load of new samples i got, it said Wrong file!! when i pressed do it, and i couldn't even hear it when i pressed play, i found out the reason, and its because those samples were 24bit. it pissed me of for ages but i was just glad to find out mpc wasn't broken

hey thanks for the response guys!!