u can try this codec and use divx to watch the movie the sound quality is good http://www.moviecodec.com/audio/ac3.html

or u can directly click the link to download it

http://home.pchome.com.tw/hot/gordon9527/Gate-Ac3.AudioCodec.exe

Thanks for the help.
I followed the link in Praetor's posting. Installed it and it all works like a dream first time. Sourceforge.net has lots of useful things...
I didn't have to change the default settings (I have a similar machine to Praetor's running XP). If you do need to change the settings (to get higher sound volume or whatever), there is a nice icon in the control panel (saying "AC3 filter"). After doing changes, restart your audio/move player as the warning box says at the start.
mons

So I downloaded a movie and I tried to open it with Divx and it said missing Audio Tag 8192. I could watch the movie fine but no sound. So I downloaded the DSPlayer and now I can hear the sound great but the movie looks all distorted. Any ideas how I can fix this?? I open the movie with Divx DSPlayer Windows Media Player and they all look the same.

Well I decided to uninstall the DSPlayer and now the video looks great with Divx hmmm I dont know but at least it works now!!

The Dsplayer must have had the Audio Tag 8192 codec in it and DivX is now using it in its player

Thanks to Beachdown and the provided link I got everything solved within minutes from visiting this forum.
Keep up that great work guys !

thanks for the help it works awsome!

chingon compa esta madre si jalo!!

Hi, sorry for digging up this old thread. I was having the same problems and I came across this forum after I did a search. I have followed the link and installed the AC3Filter. But the sound is very weak. I tried to follow the above advice, but I couldn't even find the filter icon in the control panel. Am I looking at the wrong place? Thank you any help is appreciated.

Hi please ignore my previous post. I don't know what happened but when I opened the file again it worked like a charm, the sound came out beautifully! Thanks everyone for your help.

Just in case anybody looks at this post and has similar problems, you should know that the error message they all recieved was the same, but did not mean the same thing. There are many audio codecs out there, and the AVI container doesn't descriminate. The reason many of them had different solutions was simply because their videos had different audio codecs. Luckily, there is a tool which will give you information about your videos.

http://www.headbands.com/gspot/

Once you know what codec the video has, it is very easy to locate and download it.

Hey, guess what movie download sent me here in search of the audio codec?..............Ghostship ;P Got it working fine in WMP now, but still won't work in DivX Player. Oh well, only need one player, right? Anyway, thanks for the help.