I have an .mpg which has a 48khz audio stream. How can I convert the audio to standard 44.1 kHz? I no longer have the original frames to re-encode from them. TMPGEnc will extract the .mp2 stream but I'm not sure after that what tool to use to re-encode the audio at the proper stream rate. I've tried to open the mpg in VirtualDub but it wouldn't open. Also Nero won't allow me to re-encode the mp2. Any suggestions are appreciated.