Joerg Schilling wrote:
Bill Davidsen <[EMAIL PROTECTED]> wrote:
Paragraph 4.3.7 "DVD+R Dual Layer" is much more detailed
about the layer hop. Nevertheless there is a statement
which makes me believe it is worth a try to just write
to it as to a fat DVD+R.
That seems to work. I did some backups that way, creating big files and
just burning them. I believe I used growisofs but I can't be sure after
the fact. Reading the data back produced no read errors and a correct
md5sum, I did wipe the original and test restore, though. ;-)
As you don't know what you did, it is a good idea not to believe you...
Not setting the layer break on DVD+R/DL may work in principle but it causes a
lot of headaches. If you do not set the layer break, you need to write both
complete surfaces.
Of course! That is exactly what I said I did, I wrote the data to a big
file, ~8.2GB, then burned.
As for both complete surfaces, the last volume was only 6.7GB or so, and
read back fine. So having to write an image covering both complete
surfaces (what you said) doesn't seem required.. Did you ever try just
writing an 8GB image to a DL, without specifying the layer break, to see
what it does? Or is that a requirement of your software and not
growisofs and the enhanced cdrecord which Fedora provides?
--
bill davidsen <[EMAIL PROTECTED]>
CTO TMR Associates, Inc
Doing interesting things with small computers since 1979
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