I don't have any DL media, but one of the burned settings if for DVD9, the DL media which my DVD writer supports.
The video size and resolution is in the file, the program makes no changes nor conversions for you.
As I recall, the freeware version either put up a message when played back or left an imprint on the start of a video. It didn't bother me, but I went for the paid version anyway. Only problem I've been having with it is it 'thinks' that I'm installing it on a different machine periodically. I think it is when I install and update for my ATI video card which requires me to go back to VGA. Then I install the new video drivers and the next time I run the program, I get e-mail a day or 2 later telling me I've used up 1 of my 3 installs. Contact them and they reset my install count, but never tell me why I'm getting the e-mail? Last time they told me I should run the app as Administrator. Done that, but haven't changed the video driver since. I'll see what happens later I guess? Overall I am impressed with the program.
One other point, it seems it does DO compression. I used to use DVD Flick and Nero 8's video creator Nero Vision. With Nero I could only put 2 hours on a DVD, no more. DVD Flick allowed me to put up to 4 hours, all this on the standard 4.7GB SL DVD. SoThink's program doesn't seem to have a limit, I've put over 7 hours on it as a test. Evident pixelation on all videos. Through testing on a 32" TV I can easily put a little over 6 hours on a DVD, though on the 51" TV it isn't that good, 4 hours is best for that.
The best part for me, it is by far faster than Nero and it does ever BSOD by DVD Flick, other than that, they all seem to produce the same output if kept to 2 hours.
Try the 'free' one, you might like it and it might work for you.