No audio streaming movies with iTunes 10.2.1 and iOS 4.3

I having the same problem as well. I've upgrade both my iTunes to 10.2.1 and iPhone, iPad, iPod Touch amd Apple TV 2 to the ios 4.3 and all my persoanl video that I've converted to mp4 has no audio. I have another ATV2 with the old code works fine. I also found out the movies with Audio Channels were encoded with Stereo works fine but not Multi.

Any thoughts????

I also have issues with the sound of my backed up movies after the iOS 4.3 update. This issue affects the ATV, iPad and iPhones. Movies bought from iTunes work just fine, but sound is completely gone from personal backed up movies.

Same issue, seems to be a major bug in the new release. Not sure what to do at this point as I really don't want to re-encode all my movies. Seems like Apple might have released the update a bit too quick. Anyone know if Apple is aware of the problem?

Having the same issue here where I don't get any audio. This really ***** since I spent quite a bit of time backing up my son's DVDs so he can watch them for an upcoming trip. These are the times I really hate apple.

I have the similar problem with video. I can not stream movies to apple tv after ios 4.3 update that i used to stream before. The problem seems to be for some (but a lot) specific movies though. After going through all my videos i found a couple of videos that was able yo be streamed. Even with movies that can't be streamed the video loads (and even plays on fast forward but very slow without audio) but just pauses. It just loads opens and everything but just doesn't play.I don't have any problem with streaming audio from ipod or etc. I can still stream video from youtube as well but just can't do it from my itunes.
Just to be specific, i have the issue with my ipad as well. The movies that i can stream to atv can be streamed to ipad as well (from my pc windows) but for other movies neither my atv nor ipad can play. A clear **** up by the developers. Just can't understand how they can release without even checking possible flaws.

My audio in iPod and iPhone turned to be double speed after downloading iTunes 10.2.1. I don't know what to do just waiting and may drop the service.

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http://bestvideoconvertersoftware.blogspot.com
hope it's can help you