.mp4 Playback No Audio Options

[Madmuhfuh]

Hey all

Is it just me getting no audio in at least 50% of all .mp4 files?

All SD, nothing fancy. TV eps etc

XBMC recognises the audio format as either aac or mp4a but doesnt play it back either analog or digi.

running 31136. Same issue in last couple builds. hadnt had much reason to notice previous.

the scene shift to mp4 is the death knell for the ol xbox i think, but id like to squeeze as much life out of it as poss.