I totally agree that the "old school" method's just a wee on the time-consuming side. What, none of us have anything better to do with our lives than to babysit our computers during a twelve-hour encoding job? Or sitting around while DVD Maestro chews on our streams, only to be told that we overshot the overall bitrate -- and wind up spending another twelve hours redoing everything? Having trouble lining up our chapter points? Synch problems in our sound streams? And let's not EVEN get started on handling episode DVDs, where everything's on one set of VOBs!
(Get the feeling this subject hits a sore nerve with me?)
On subject, though, out of curiousity, I ran one of my Star Trek, TNG, DVDs through InstantCopy to see how it handles interlaced material. It looks pretty good, considering that it is, after all, a copy. If I were you, I'd download the trial and give it a try on a rewritable. It'll never beat DVD2ONE's speed -- and it NEVER acurately predicts the file size -- but since it re-encodes everything (and DVD2ONE only recompresses it), that just may be why it handles interlaced streams better than DVD2ONE seems to. *
But if it works for you, it works! All you'd have to do is run your copy back to your hard drive via DVD Decrypter (or Smartripper), then burn your DVD-R. If it doesn't work... well, you're not out anything, at least.
*NO offense, Rene + Irwin! Don't mean to recommend the competition when I personally prefer DVD2ONE any ol' day of the week over InstantCopy, but fair's fair and a test is a test. On progressive scanned images? I always wind up with BETTER results using DVD2ONE, since I'm actually able to use the entire disk's storage capacity. Now that I'm finished brown nosing...