Before I make a potential £2.40 coaster I used DVDshrink on my DL DVD compile and burnt it to a DVD-RW, DVDShrink had to squash the video by 50%, shrinking the video by half sure introduced compression artefacts that weren't there before, but otherwise it was a great test of the menus etc.
Before I burnt any clips to test discs I've been using my Sigma Hollywood+ hardware mpeg decoder card to test full DVDs on my tv and parse the DD to my amp, very very useful to test menus etc. on a 'real' setup before burning anything but the only drawback is the picture quality is bad because of the composite connection, the RGB connection between my main DVD player & tv makes all the difference and that's where the video shines.

Anyhoo the NTSC DL ANH DVD is effectively done so all I got to do now is burn off the first DL disc and make the cover & disc artwork. Tomorrow I think.