hey wassup.. i'm new to the site, but what you're gonna need to do is have some kind of audio recording software on your computer... if you're on a PC maybe Sound Forge or CoolEdit, if on a mac maybe Peak or Audacity... anyways, what you need to do is run cables from the output of your MPC to the in/mic input of your soundcard and record your beat into whatever software you end up using. the file format should be a WAV file (on PC) or an AIFF file (on mac)... once you have your beat recorded and ready to go, you can just save it and then load it into itunes... then in itunes do a right click over the song and Convert to MP3... it will then be ready to upload to myspace.
