writing dvd's with nero, no sound.

i downloaded avi files from mininova.org and i tried using nero but during the preview, some files had no sound. Other avi files worked fine and they all had sound. WHY?

download vlc player free then play the avi file in it to see if the sound is ok through the film then if so you might need some codecs to install
k-lite pack


http://www.free-codecs.com/download/K_Lite_Codec_Pack.htm

G-LUCK M8