I got it! "I agree" killer! Cheap, easy, but...

[naterprius]

Yes, a backup has been done, using a full DL copy. (Not by me, by someone else). It works well. Must have been +R, since there is no -R DL spec.

Nate

[tag]

I backed up v3.2 and v4.2. Both backups worked fine with Verbatim DVD+R DL media burned with DVD Decrypter. Other DL branded media (e.g., Ritek), well, different results. YMMV, of course, but I'd recommend sticking with the Verbatim brand.

[DanMan32]

Someone has posted here or on PriusOnline that they successfully created an SL DVD by only copying the file pertaining to their region, and creating dummy files for the remaining regions.

[rydot]

I don\'t know if this is dragging the thread off-topic slightly, but I\'ll go down this branch anyway...

Would finding a way to remove the French-language audio "utterances" save a worthwhile amount of space?

[tag]

I'm not at all sure about that. However, I noted, while perusing a circa 50MB file, that it contained both French and English. Thus, any space savings would require dissecting individual files (or at least one).

So, with regard to going the SL route, it would be infinitely easier to copy files for one region and create dummy files for the unused regions, as Dan mentioned. Actually, that same process could be done for each region so one could have all regions available but on separate SL disks. I haven't done the math but I believe it might be possible to fit more than one region on an SL disk.

[MashedPotato]

Multiple regions will fit on a single-layer disk. I use a 4.2 disc that has regions 1, 2, and 3 on it.

I've tried three brands of -R and one +R. They all worked fine. I haven't tried any RW's or DL's.

The only trouble experienced was upgrading from 3.1 to a region-limited 4.2. The region was unexpectedly changed to one that had been deleted from the disk. I couldn't get out of the "problem reading DVD" message to switch regions back. (It's in another thread.)
<div class='quotetop'>QUOTE(xevious\";p=\"61074)</div>

I have quite a bit of experience with disc mastering; I'll take a look at the nav disc tomorrow and report any interesting findings.
[/b]

Steven, in 3.1, I couldn't copy one of the files using conventional methods, so I create an ISO image of the disk, and used MagicISO to delete the unneeded regions' files from the image before burning. This worked, so I followed the same procedure with 4.2. (I noted, however, that the file that wouldn't copy in 3.1, does indeed copy in 4.2, so maybe the cumbersome ISO method isn't needed with 4.2.)