converting MOV>Dvd with Avisynth ?

[spiritgumm]

Trying to reencode a MOV file for dvd with Avisynth, using QTSource plugin (had issues with QTReader plugin).
The MOV video is 29.97 fps, and audio is AAC in 44.1 khz.

I used the QTSource plugin which seems to work fine on a short clip, but was wondering if just setting the "audio=true" was the only thing I needed to do? I'll be encoding with HC, and converting audio to ac3. Here's my script so far:

QTInput("C:\movie", audio=true)
Lanczos4Resize(720,480)
ConvertToYV12()
trim(0,500) #test sample

When I process the audio, I'll add:
ResampleAudio(48000)
Soundout()

[creamyhorror]

Don't forget about the convenient AVStoDVD for such conversions.