so i have a bunch of movies / shows/ etc on my computer ....

they are all MP4 format videos and when they play back the audio is off sync with the video and it seems to lag when playing back? any suggestions with why this is so?

i have yet to test avi files.

I've heard of lag when folks attempt to play movies/music vids from their SD cards (I don't have any direct experience with that as I've not tried it myself)

Though I have played movies AND music vids from my iPod and can't say that it has ever happened to me. Mine are also MP4 formatted files.

Sorry, I couldn't say why that is happening, but wanted to let you there was someone else that had the same type of files that WEREN'T experiencing the same problem you are encountering.

Sorry! Hope you get in resolved!

Kev

I play both .m4v and .mp4 from my iphone 3g, video and audio are in sync.

On SD playback, my video files lag when encoded with H264. If I encode with MPEG (mp4 extension) they work great. When using the bitrates specified in the manual I can get my files down to about 100MB per half hour of video. I wish I could get my iPhone to properly play back video on my 700 because you get a much better menu structure than with SD. I can only get sound but no video through the iPhone...maybe I have a defective cable?

Yea it's from as card I'm waiting on my iPod cable in the mail. Ehh. So I guess I'll just run video from the iPhone when I can I was hoping to playback on sd card . Avi has same lag issues

Just a quick update: I was able to get my iPhone working by replacing a defective cable.

I would try reencoding your video files, I promise they will work from SD. Of course when you get your ipod cable it won't matter because it does a much better job of playback without menu lag.