mp4 audio playback after iphone 3.0 upgrade

[jwray]

Hi,

I have my music collection ripped using Max into two formats in parallel; lossless and MP4 audio format (AAC) stored with the .mp4 extension. Since the iphone 3.0 upgrade the aac files cannot be played on the phone, which is the only reason I created them in the first place. They play fine in iTunes and songs ripped in iTunes play fine on the phone.

any ideas?
thanks
Jonny

[sbooth]

I would recommend converting to MPEG-4 Audio (AAC) with the .m4a extension, those should work fine.