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Finally made tests with DVD-R. They burn indeed like DVD-RW.

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This commit is contained in:
Thomas Schmitt
2007-02-08 14:10:05 +00:00
parent ba59ab1aeb
commit 5c789efbb7
4 changed files with 54 additions and 43 deletions
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23
libburn/trunk/cdrskin/README
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@ -420,25 +420,25 @@ into the format of the burned data. Be advised to use growisofs for the
task of maintaining extendable ISO-Filesystems on DVD+RW.
DVD-RW
DVD-RW and DVD-R
DVD-RW are usable if formatted to state "Restricted Overwrite" or if in state
"Sequential Recording".
"Sequential Recording". DVD-R are always in sequential state.
"Sequential" is the state of unused media and of media previously blanked
or written by cdrecord. dvd+rw-format -blank can also achieve this state.
The according cdrskin option is blank=deformat_sequential .
If "Incremental Streaming" is available, then sequential media are capable
of multi-session like CD-RW. (But not capable of -audio recording.)
of multi-session like CD-R[W]. (But not capable of -audio recording.)
This means they need option -multi to stay appendable, need to be blanked
to be writeable from start, return useable info with -toc and -msinfo,
eventually perform appending automatically.
Without "Incremental Streaming" offered by the drive, only write mode DAO is
available with sequential DVD-RW. It only works with blank media, allows only
available with sequential DVD-R[W]. It only works with blank media, allows only
one single track, no -multi, and demands a fixely predicted track size.
(growisofs uses it with DVD-RW if option -dvd-compat is given.)
(growisofs uses it with DVD-R[W] if option -dvd-compat is given.)
Overwriteable DVD behave much like DVD+RW. "Restricted" refers only to the
Overwriteable DVD-RW behave much like DVD+RW. "Restricted" refers only to the
granularity of random access and block size which have always to be aligned to
full 32 kB. Sequential DVD-RW are converted into overwriteable DVD-RW by
cdrskin dev=... -v blank=format_overwrite
@ -475,17 +475,6 @@ Incremental Streaming afterwards. So blank=fast will do full blanking.
blank=deformat_sequential_quickest is faster but might yield DAO-only media.
DVD-R
The specs state that DVD-R behave like sequential DVD-RW except the capability
to get blanked or formatted. Thus they should be useable like CD-R media (but
without -audio).
Blank DVD-R media are accepted as suitable by cdrskin on my drives.
I got only a few of those one-time recordable media and no real use case.
So i prefer to start burning my DVD-R only at the end of my endeavor about
sequential DVD. There's still plenty to do with DVD-RW testing.
Special compilation variations
You may get a (super fat) statically linked binary by :

16
libburn/trunk/cdrskin/cdrskin.1
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@ -2,7 +2,7 @@
.\" First parameter, NAME, should be all caps
.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
.\" other parameters are allowed: see man(7), man(1)
.TH CDRSKIN 1 "February 1, 2007"
.TH CDRSKIN 1 "February 8, 2007"
.\" Please adjust this date whenever revising the manpage.
.\"
.\" Some roff macros, for reference:
@ -44,9 +44,11 @@ or in Session at Once mode for seamless tracks.
.br
Multi session on CD (follow-up sessions in TAO only)
.br
and on DVD-RW (untested yet: on DVD-R).
and on DVD-RW or DVD-R (in Incremental write mode only).
.br
Burning of a single data track to DVD+RW, DVD-RW, DVD-RAM.
Single session on DVD-RW or DVD-R (Disk-at-once)
.br
or on overwriteable DVD+RW, DVD-RW, DVD-RAM.
.br
Bus scan, burnfree, speed options, retrieving media info, padding, fifo.
.br
@ -125,13 +127,13 @@ Multiple cycles of blanking and overwriting with random numbers might be.
---------------
.br
Note: The support for sequentially recordable media is still emerging.
DVD-R have not been tested yet.
.br
---------------
.br
Currently only DVD-RW (and most probably DVD-R) can be used for the Sequential
recording model. DVD-RW must be in state "Sequential Recording". The media must
be either blank or appendable. Newly purchased DVD-RW media are in this state.
Currently only DVD-RW and DVD-R can be used for the Sequential recording model.
DVD-RW must be in state "Sequential Recording".
The media must be either blank or appendable.
Newly purchased DVD-RW and DVD-R media are in this state.
Used DVD-RW get into blank sequential state by option
.B blank=deformat_sequential .
.br