Media Player for Mogul

[littlefreak]

So I just got myself a 8gb microSDHC card and nice pair of samsung stereo bluetooth headset. But heres my issue:

Using windows media player it constantly stops and rebuffers I have no idea why. It also slowly jacks up my memory. Starting at around 70% usage and like 10mins later its up to 98%.

So anyone know a good media player for the mogul. Also I want to make sure that the buttons on the headset (next, prev, play/pause) work with the media player too...