Read in your manual for further details on RESAMPLING or do a search within the mpc2500 section using the word RESAMPLE/RESAMPLING. (but go to sample screen change it to MAIN. Now play the sequence and start recording. If you dont have the 128mb expansion then dont even do its a waste of time cause u wont have enough memory.)
or
Record to your PC as i stated above. You are a real smart person u will figure it out cause u figured out the other stuff on your own. Experiment fam it wont hurt you.