Originally Posted by
HomerSp
@punkonjunk, you obviously don't understand the difficulty and time needed in adding m4a and wma support to xmp. It's just not a simple copy-paste from a windows app and there are no (I think) psp apps which support those formats.
If you're gonna say that "the built-in player has support for them and is free" then first of all, it's not free. When you buy the psp you also buy an license which gives you an unlimited amount of official updates, including all the applications that comes with it.
Secondly, yes it does support those formats. But think like this, Sony is a huge company with thousands of employers, and Xandu is just one person who does it for fun.