I was following the guide "Burning DVD Video files directly to double layer media with ImgBurn", from forum.imgburn.com, which I've used successfully before. Only one layer break candidate turned up, rated Average. (Less than usual, lower rating than I've seen before. Ripping had been done with the final version of RipIt4Me, with no problems.) After all steps were done, and the final O.K. given, ImgBurn seemed to be doing its thing for like 20 minutes, with the burner light lit, but the job remained at 0 % done. I realized that ImgBurn was hung, but was unable to abort it or kill the process. Finally had to power down. I thought that Verbatim DL blank must be coastered for sure, but subsequently burned it just fine in a standalone DVDR. I'm just glad the laser of the PC's burner wasn't messed up by this.

I tried to do this backup job again, with another blank, but at the "Calculator" screen, noticed that ImgBurn claims the source DVD exceeds the 8.5G capacity of the blank by some small margin. That ought to be impossible, right ? There have been some "oversize" commercial CD releases that were on larger-than-standard media (90 min. CDs ?), but I've never heard of anyone doing this with DVDs. Either I'm wrong about that, or maybe there are cases where ImgBurn can become confused by the content of certain DVDs ? Has anyone else run into this ?