Stoked on the idea of Rockbox but having trouble playin mp4. They play but keep cutting out or overloading or something every few seconds. I'm sure the answer is short and sweet. Also i saw a wma patch in the 'patches' section. how does that work coz i seem to have alot of music thats encoded in wma from the original xbox (unchipped) ripping mode, i guess Microsofts doing. any helpful hints there?