having trouble with hard drive!!!

Ok so i install the hard drive and it works, Cool Beans. I load the drums on it and it shows on the menu screen for load...I hit play on the wav formatted sound don't get no playback. Try to browse it in programs nothing, can't find anything of any stored sounds at all. What am i doing wrong, is there a certain i way i'm suppose to do this to get it to recognize the sounds and play them back? Is it a different format?

Is it In .wav format.

yes it is in wav format, and when i go to the load screen to see the sounds i put on the hard drive i hit play and don't get any sound. Than if i hit do it it'll say wrong file and it's a wav. Now when i go chop a loop from audition of some audio source and save it to wav than drop it in the hard drive the mpc loads and plays those sounds but not from my wav. files i have of drums or even one shots if i load them on audition and do it that way. I dont know what's wrong.

Make sure your wave files are 16bit 44.1 , the reason why the sounds that you saved from audition worked was because of the right type of wav the mpc supports. If not that then the wav file might be corrupt. You might have to export all your wav files on audition.