problem with loading/recording samples

I have my samples set in a program and when I load my sequence I load my program, but it says "file not found" the samples are in my memory card and I can play them but they dont play back in the sequence. Ive tried to re record them but still no playback. why is this? I have a dane-electric 1gb memory card Is this the problem? any help?

ok Ive tried it again and my samples wont load, and actually the beat cuts short like 3 bars what is this...........

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Try this.... get your samples in the MPC and program em and all that.....go mode save and open up a new foldr. Then go save a program- save WITH SAMPLES,replace same samples in memory:YES..Then get ur sequences put together then highlight the sequences name on the main screen, hit the window button and select user, DO IT-then go Mode Save- save a sequence, save the SQ you just did that too, do that for all the sequences you make. Hope that works. oh, if you go MODE load, and select VIEW:SAMPLES, can you find them samples and audition them?? If u can locate them and audition them- do this-----Go MAIN and create a new program(highlight PGM and press window), then go mode load and load them individual samples up and assign them to pads, then go Mode save and save w/ SAMPLES replace same samples in mem:YES............................. Let me know. Holla Back.....