Hi there, I've been doing some reading up on LPCM & AC3 audio. I noticed before that I was using AC3 audio (I think) and all my projects in Nero fit fine. However, after I downloaded a new combined codec pack now my projects don't fit, because the audio is now being encoded with LPCM. (According to the internet because LPCM is uncompressed. Is that right?) When I go into Nero Vision and go to: Default Video Options --> DVD Video ---> Audio Format: LPCM. However before it was AC3 (or whatever its called.) Now I want to go back to AC3, but I can't seem to get that option. How do I do it? I tried disabling the LPCM in the klite codec pack -- doesn't work. Tried uninstalling the codec pack for a different one ---> doesn't work. So is there any way for me to get the AC3 encoding back? Input is greatly appreciated.