Yes, I have used the same disks I'm using now with iMovie to create a simple video based slide show from iPhoto. The DVD played just fine in my DVD player. I'm able to play the new DVD on my Mac, it just will not play in my home DVD player. Yes, I did choose DVD format.
Okay, I know have the DVD where it will play, but as you described there is no audio. is there any way to have Toast convert the audio to PCM as the DVD is created?
I don't remember what it said before (Multiplexing or Encoding. I found a setting in Toast to specify the audio as PCM, now when I started to record the DVD it says Multiplexing then says encoding. I'll see what this produces, but it will be several hours before it's complete.