OK well i was reading a past post on how to do this and have been following all these steps. My question is, how do you do step 3? and do you need to do Step 4? 1. Rip the Audio stream from the .avi using Virtual Dub or NanDub. 2. Re-Encode the .avi (DivX) video stream to .m2v (MPEG-2) using a program such as CCE or TMpgEnc. 3. Process the ripped audio stream into an AC3 (required for DVD, unless you want to waste space using PCM (.wav) format). 4. Author your DVD using the .ac3 and .m2v you created above using software such as DVD Maestro or Scenarist. 5. Burn your DVD image or VIDEO_TS and AUDIO_TS folders created above to DVD using software such as RecordNow Max.
If you just want to burn it to disc then you can skip the first 4 steps and go straight to burning. If you want to convert to DVD video then yes I would use AC3 audio. You can skip step 1 though and process directly to AC3 via ffmpeg. Yes you need to author or use an all in one type app that both converts and authors.