I just downloaded the PSIX lite version and found out that it's using GPL licensed software. However, PSIX does not claim itself to be GPL, nor does it release any source code. I'm definitely sure the Audio Player (audio.prx) within PSIX is based on MAD libmad library which is a GPL license software as I've checked the object file myself . How can PSIX get away with this and not even release the source code of its audio player? Isn't this illegeal?