Converting .mpc audio files to .mp3 format.
Converting MusePack Compressed Audio Files directly to MP3 Audio Files (.mpc to .mp3 conversion) is certainly possible and should be quite straightforward.
Use an audio editing software or (online) conversion tool, such as Helium Music Manager or MediaMonkey, which allow users to import MPC files and export them in MP3 format.
A music library management program
A digital media player and library
A universal all-purpose free media, audio & video converter
An audio converter and audio-grabber for Windows