Rewritable DL?

[dbminter]

I remembering reading years ago about DL rewritable media. I believe DVDInfo Pro even at one time (Maybe it still does.) would detect if your drive had DVD+-RW DL capabilities. But, I've yet to see a drive or discs appear. Did this never materialize? Is it because of competing, larger media like Blu-Ray and, at the time, HD DVD?

[Rincewind]

I searched google for any kind of rw-dl media both - and +, but turned up nothing. I guess it just never materialised. I think multi-layered recording is rather complex enough, and perhaps making it rewritable would be taking a huge risk. I would imagine there would be a high rate of write failures, and perhaps even said drives would have issues reading them.

 

P.S. my drive supports reading and writing -RW DL, but not +RW DL...

 

P.P.S Perhaps bluray might offer multi layered rewritable, but I can't really imagine who would use it.