I googled and got this. This is shareware though and I dont know how effective it is. There are certain softwares which can convert any type to any type, but I cant remember the name. Maybe John or someone can help you. Anyway:http://www.brothersoft.com/mp3_audio/rippers_encoders/imtoo_psp_music_suite_39090.html
This is the description: Powerful in function - This suite can convert MPEG, WMV, ASF, AVI, QuickTime, MPEG4; 3GP, DV, Real Video, Animated GIF, Macromedia Flash to MP4 and convert MPEG Audio, WMA, WAV, AU, MPEG4 Audio, Real Audio, OGG, AAC, Raw AC3, NUT Open Container Format to MP3.