Errrm I believe the reason you are getting coasters is because you are using DVREDIT. I think once you edit using DVREDIT, the file is munged-up and you cant burn these files as a DVD VIDEO file any longer.
Try doing these steps with a single show (NOT EDITED via DVREDIT) and try again. I bet you dont get a coaster, and NERO's RECODE2 will take care of the compression for you. Do this as a test first with a single episode. If this works..... then you know its the step of editing-out the commercials using DVREDIT that is messing you up.
I personally use dCUT as mentioned in this thread. Someone posted that there is an update (I havent personally updated yet, but I am looking forward to doing so). I believe this newer version now comes as an installer which will make life for those who fear the registry a little easier.
Once installed.... sit on the couch and click your in-points, FF, out-points, etc. and recompress your video segments to a file.
Then as another test, again take one file and either use NERO 6.0.6(that you purchased, to add buttons and navigation etc.) or use the internal CREATE CD/DVD function inside MCE (this will automagically add buttons with an MCE menu interface and text using the filename). See what you get from this process. I bet you get a playable DVD for a commercial-grade DVD player.
Breaking all this down, you will be able to tell where along the way your current process results in coasters. My bet is that it is in using DVREDIT to edit your files. I had tried waaay back when I first got MCE and quickly found that once you use DVREDIT, the files are pretty much useless for anything else except for playing and replaying inside either MCE or WMP. So I chucked DVREDIT a long time ago. Nice program, just not useful in a production environment.
Have you tried using NERO to create a VIDEO DVD with any non-edited files yet??
Also, curious as to the contents of those coaster DVDs you made.... are they Video DVDs containing a valid VIDEO DVD structure? or are they data files??? What player or application opens to play these DVDs when you pop them in the computer?? nVIDIA?? WMP??? Nero??
Those be my thoughts
-- Dondi