From the PSP MVP2005 feature list:
That sounds like a player built into the game to listen to your MP3s during the game.
If it is, why don't they support custom soundtracks on the Xbox so we don't have to withstand their licensed music?
# Dominate from Wire to Wire: Take your team all the way from opening day to the World Series in Season mode.
# Wireless Head-to-Head Gameplay: Challenge friends sitting next to you or across the room to an Exhibition Game, Homerun Shootout, or Pitcher Showdown.
# Party Play: Four players can compete in Batting and Pitching mini-games using one PSP unit.
# EA Pocket Trax: This new feature designed for PSP allows you to listen and watch music content via this built in player.
That sounds like a player built into the game to listen to your MP3s during the game.
If it is, why don't they support custom soundtracks on the Xbox so we don't have to withstand their licensed music?