To erase all youre memory card and start with a clean slate do this:
mode,save,utility, and last press "do it ".
To save a song its best to save entire memory,do this:
Press mode,save. Than make sure on the top you have it set at, "save to memory card".
Below that make sure you have it set to,"save entire memory". Than press "do it".
You can name youre song on the next screen by Moving youre data wheel to the left, and deleting whats on there by pressing down the shift button while moving the left digit arrow. Type youre new name by hitting the pads. There are letters on the pads. Than press enter. Where it says "replace same files" I usually put yes. Last press "do it" and you have saved youre song. To load it simply go: "mode load" and look for song name on folder and press do it. Go to m. screen and scroll to the sequence or song mode you originally had it in. Best thing to do is to study the manual hard until you master youre mpc. It will only make youre song better, when you learn other things you can do to it, to improve it. Well hope you understand this, enjoy youre mp.