I think what we have in this thread is a combination of things, and it's complicating the OP. For example, the non-indexing of clips (as can happen) is getting rolled into other matters. Solution for that is to close your project and re-open - this as often as not provides a solution. I often just clean out the media cache (on large projects) reopen and force new indexing. And whilst you're at it look specifically at where and how you are caching (I use a dedicated Raid 0 HDD array soley for that purpose). But moving on: I just like to nail my colours to the Adobe mast here before I give my own experience of the audio out-of-sync issue - or perhaps (and more realistically) it's the video out of sync with the audio. I love my Adobe Production Premium CS5.5, and my edit user experience in the whole is good - yes, there are some niggles (as this forum knows) but from what I read of other software and user experiences it's not worth the candle changing - the grass (supposedly) is always greener somewhere else. I had the out-of-sync issue a while back (and sometimes still do). Simply, the HDV clip showed drop-like frames - tape drop out (this issue was from a Sony Z5). Windows Media Player showed no drops or clip issues, but sure enough in Prem Pro I lost audio sync with that clip - and only that clip, but better described as video lag by about 15 frames or more. Also understand the problem - video lag suggests a video problem not an audio problem - this could be due to video delays caused by third party video effects, or simply a bloated video effects or video processing chain. Interesting to note that this thread has had over 1,600 views - it would seem this is an on-going issue. Interesting also not to see an Adobe Employee responding. But yes, Ann Bens as a Community Professional has offered a suggestion. I think it's wise to first follow that and troubleshoot the issue more logically. The solution in such a situation is to first recapture the clip and do as Ann has suggested and capture without using the Scene Detect function. Clearly there is a problem, but I do suspect that the clip is dropping frames or at least Prem Pro believes that it is. Interesting to note, I have not had this problem with AVCHD clips (from a Sony NX5 - solid state storage) just the occasional HDV clips from tape media - a Windows Media Player does NOT spot it. Yes, like most, I get stressed when on a deadline with a client, but sometimes you have to desconstruct the problem and help yourself - not blame Adobe for it. Every manufacturer has their wrinkles - no doubt FCP and all the other stuff has too.
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