I find backup compression of almost any amount UN-preferred. I CAN discern the difference on my setup. I always split my movies over two disks. So my transcoder almost never has to engage. CloneDVD is TOPS for this!
Olli said he is working on the split interface to make it even easier. What I want from CloneDVD's spit feature is that it automatically split the movie at exactly the original movie's layer break, which is often NOT exactly at the end of a chapter. That will mean less juggling around of little title sets to make every thing fit. If the original fit 4.37 Gb on one layer and similar on the second layer then I can back that up exactly the same without thinking. As it is now, being forced to split exactly at a chapters end can cause minor problems fitting everthing on two disks ... especially if its a special features type disk with one big "documentary" TS and a million other medium and small title sets.
And Olli also spoke of maybe adding abrown15's "Insert Disk2" Graphic. I miss that little extra that DVDXCopy used to give me.
Buying a multi-disk DVD Changer-Player makes watching split backups really convenient. Store them in 2-disk jewel cases. Reasonably priced, dependable, brandname dual-layer media is probably a year or more in the future. They have us by the ****s now!