[mythtv-users] Confused: PVR-250 to DVD

[Chip]

Okay, I admit it, I am totally confused about how to get a MythTV 
recording to a DVD.

I have taped a show and want to burn it to DVD (menuless, I just want to 
put the DVD in and have it run).  It was taped using the default 
format.  Here is what I did to get that nice coaster:

1.  I ran avidemux to cut the commercials and saved it as a DVD PS format.
2.  I ran 'dvdauthor -o <dvd directory> <saved file from step 1>'
3.  I then ran 'dvdauthor -o <dvd directory> -T'
4.  I then burned the CD using K3B, dragging each of the two created 
directories into the new video DVD project

It looks good, but then bombs when I try to play it. 

After doing reading, I know I have to change the format of the video to 
be either 720x480, 352x480 or 352x240 (default is 480x480).  I will 
change this on my next test.  The audio part looks fine (48Khz, 384Kbps). 

Can anyone see what I am doing wrong?  Also, when I was setting up my 
"high quality" for my PVR-250, I noticed that there is a stream type for 
DVD, should I be using that?

Thanks for any information