No audio with avidemux

Hi.Am having trouble getting audio after successfully joining 2 avi files together(same movie 2 files)
Converted without audio for some reason.
Left video and audio both on copy.No good.
Also tried audio on acc,ac3.Still nothing.
Any ideas?
Thanks.
Darren.

Do the separate files play ok (with sound) before joining…

Hi.Yes,they do play alright although cant play the files in windows media player.Have to watch in vlc player.
Thanks.
Darren.

What are the audio specs?..AC3?..Can you play the files with avidemux, audio ok as well?..
I use avidemux and frankly I haven’t had any issues when joining proper files…You are using the AVI format and saving with[B] .avi[/B] extension right?
There’s also VirtualDub, and AviMuxGui…with

All sorted.Had probs with vdub due to wrong codecs.Now updated codecs and no need to use avidemux.
Thanks.
Darren.