Hi. Well if the Khzs are not the problem, I'll recomend that you use BeSweet for audio encoding, it is a very good tool, free, and you should not have synch problems... I hope. As well as I know, you can encode audio files with BeSweet, using AviSynth as frameserver... If that doesn't work, use BeSweetGUI, to encode the audio file. Greetings! ;)

To demux the file, will be the best but... Hmm....:confused: Wich program to demux asf/wmv? I have no idea... Did you try with VirtualDub? Greetings!

Well, finally I find out the solution for my problem. Once again, I highly appreciate all your helps in this thread, Castellanos :) Regards,