Create playback controls for Timeline in sync with audio?

Hi All,
Technically, I've combined two questions into one. Firstly, can someone offer some insight on how to create playback controls for an Edge animation so the user can essentially "scrub" the timeline or navigate to a specific point on the timeline. I know you can create buttons to "sym.play()" different areas but I was wondering if there was a more streamlined solution (something similar to video playback controls.) Next, I'd like the user to be able to skip to different locations while the music remains in sync with the animations. I've created a few buttons to attempt to achieve this but the music plays independently regardless of where I jump to on the timeline.
Any help would be most appreciated.
Thanks in advance!

I had some ideas why that may be so, but then, when I thought about it, properly, i have no idea why it is that way. Maybe it is because audio has a higher priority than graphics, in OS X, but if I remember correctly, it was like this before OS X. Maybe there is an offset for latency compensation, but they made it too large. (it seems to be the same amount, no matter what the buffer size is)
just to make sure we are seeing the same thing. on my (somehat old) G4 I'm seeing about 60ms difference.

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Yes, i know what XviD and DivX does not edit well in Premiere Pro. And because of that i create this topic "No sync with audio for input files AVI MPEG4 23.976 fps" and was hoping to get help in solving the problem, rather than stating that the problem really is.
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Xvid (formerly "XviD") is a video codec library following the MPEG-4 standard, specifically MPEG-4 Part 2 Advanced Simple Profile (ASP).
http://en.wikipedia.org/wiki/Xvid
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You suggest to convert them to another format (DV) to make compatible with Premiere Pro... It is not what i want.
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uploaded AVI XviD 1280x720 file with very good quality have size 1.9Gb (with audio AC3 2.0). If i convert it via VirtualDub from "AVI XviD" to AVI DVCPRO HD 1280x720 (without audio) it have size 35Gb, and quality is worst than at XviD-HD, and also converting take much time.
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http://en.wikipedia.org/wiki/DV
AVI XviD and DivX can use AC3, MP3, OGG audio without any problems.
Size of 1Hour 30Min "AC3 Stereo 48kHz 16bit 384Kbps" file is 257Mb
Size of 1Hour 30Min "PCM Stereo 48kHz 16bit" file is 1030Mb
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http://www.matrox.com/video/en/products/compresshd/specs/
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http://www.adobe.com/products/premiere/extend.html#Supportedvideoformats
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Create playback controls for Timeline in sync with audio?

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