I have initially used WPA files (format I used with my old pocket pc) but while these work fine with the built in Media player, the sound is a bit naff with extra ones such as UKMP or MediaBox Media Centre (both of these apps played the sample music files OK - which are mp3 format).
Am I better of re-ripping my CD in mp3 format or is there another format that works better on the N810?
Also what kbps is best