Hey just wanted to know if there is an application out there that can play my file in time with the video.The file i have is Monty Python & its an xvid file ac3 however when i play this on divx the speaking is off time with the video,anyone know if this can be fixed? 
Get Xvid from www.divx-digest.com
Get AC3 decompressor from http://fcchandler.home.comcast.net/
Get AC3 Filter from http://ac3filter.sourceforge.net/
I assume you have purchased copies of Monty Python.
Few q’s:
What’s your PC spec’s? What is your monitor settings at? (ie - 800*600/16bit etc)
Where did you get the files from? Have you tried playing the files using VLC (http://www.videolan.org/vlc/).
Also, try to use another media player, other than the DivX one. Zoom Player is a good one:
http://www.inmatrix.com/files/zoomplayer_download.shtml