Note: that post is applicable to owners of a Jailbroken iPhone 2.x with Cydia installer installed.
Q: I like to play other audio and video formats on my iPhone. Is that possible? A: Yes, with MPlayer you can play MPEG4, H.264, wmv, mp3, aac, wma, Real Media and T-DMB.Q: How can I get it? A: Via the Cydia installer source ModMyi. Q: How to add the audio and video files? A; Just add the files in /

Orginal post by Waku_Waku