Finally made tests with DVD-R. They burn indeed like DVD-RW.
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README
32
README
@ -54,7 +54,8 @@ See README file there.
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Overview of libburnia.pykix.org
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libburnia.pykix.org is an open-source software project for reading, mastering
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and writing optical discs. For now this means only CD-R and CD-RW.
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and writing optical discs.
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For now this means only CD media and all single layer DVD media except DVD+R.
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The project comprises of several more or less interdependent parts which
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together strive to be a usable foundation for application development.
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@ -66,10 +67,10 @@ we would need : login on a development machine resp. a live OS on CD or DVD,
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advise from a system person about the equivalent of Linux sg or FreeBSD CAM,
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volunteers for testing of realistic use cases.
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We do have a workable code base for burning data CDs, though. The burn API is
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quite comprehensively documented and can be used to build a presentable
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application.
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We do have a functional binary which emulates parts of cdrecord in order to
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We have a workable code base for burning CD and most single layer DVD, though.
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The burn API is quite comprehensively documented and can be used to build a
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presentable application.
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We have a functional binary which emulates parts of cdrecord in order to
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prove that usability, and in order to allow you to explore libburnia's scope
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by help of existing cdrecord frontends.
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@ -78,20 +79,25 @@ The project components (list subject to growth, hopefully):
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- libburn is the library by which preformatted data get onto optical media.
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It uses either /dev/sgN (e.g. on kernel 2.4 with ide-scsi) or
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/dev/hdX (e.g. on kernel 2.6).
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libburn is the foundation of our cdrecord emulation.
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libburn is the foundation of our cdrecord emulation. Its code is
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independent of cdrecord. Its DVD capabilities are learned from
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studying the code of dvd+rw-tools and MMC-5 specs. No code but only
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the pure SCSI knowledge has been taken from dvd+rw-tools, though.
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- libisofs is the library to pack up hard disk files and directories into a
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ISO 9660 disk image. This may then be brought to CD via libburn.
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ISO 9660 disk image. This may then be brought to media via libburn.
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libisofs is to be the foundation of our upcoming mkisofs emulation.
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- cdrskin is a limited cdrecord compatibility wrapper for libburn.
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Cdrecord is a powerful GPL'ed burn program included in Joerg
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Schilling's cdrtools. cdrskin strives to be a second source for
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the services traditionally provided by cdrecord.
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the services traditionally provided by cdrecord. Additionally it
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provides libburn's DVD capabilities, where only -sao is compatible
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with cdrecord.
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cdrskin does not contain any bytes copied from cdrecord's sources.
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Many bytes have been copied from the message output of cdrecord
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runs, though.
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See cdrskin/README for more.
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See cdrskin/README and man cdrskin/cdrskin.1 for more.
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- test is a collection of application gestures and examples given by the
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authors of the library features. The main API example for libburn
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@ -178,6 +184,14 @@ Project history as far as known to me:
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libburn, is now called libburnia. For the origin of this name, see
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http://en.wikipedia.org/wiki/Liburnians .
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- 16th January 2007 release of libburn-0.3.0 and cdrskin-0.3.0 . Now the scope
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is widened to a first class of DVD media: overwriteable single layer types
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DVD-RAM, DVD+RW, DVD-RW. This is not a cdrecord emulation but rather inspired
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by dvd+rw-tools' "poor man" writing facility for this class of media.
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Taking a bow towards Andy Polyakov.
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- Upcoming release will cover sequential DVD-RW and DVD-R.
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------------------------------------------------------------------------------
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@ -420,25 +420,25 @@ into the format of the burned data. Be advised to use growisofs for the
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task of maintaining extendable ISO-Filesystems on DVD+RW.
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DVD-RW
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DVD-RW and DVD-R
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DVD-RW are usable if formatted to state "Restricted Overwrite" or if in state
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"Sequential Recording".
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"Sequential Recording". DVD-R are always in sequential state.
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"Sequential" is the state of unused media and of media previously blanked
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or written by cdrecord. dvd+rw-format -blank can also achieve this state.
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The according cdrskin option is blank=deformat_sequential .
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If "Incremental Streaming" is available, then sequential media are capable
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of multi-session like CD-RW. (But not capable of -audio recording.)
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of multi-session like CD-R[W]. (But not capable of -audio recording.)
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This means they need option -multi to stay appendable, need to be blanked
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to be writeable from start, return useable info with -toc and -msinfo,
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eventually perform appending automatically.
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Without "Incremental Streaming" offered by the drive, only write mode DAO is
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available with sequential DVD-RW. It only works with blank media, allows only
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available with sequential DVD-R[W]. It only works with blank media, allows only
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one single track, no -multi, and demands a fixely predicted track size.
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(growisofs uses it with DVD-RW if option -dvd-compat is given.)
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(growisofs uses it with DVD-R[W] if option -dvd-compat is given.)
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Overwriteable DVD behave much like DVD+RW. "Restricted" refers only to the
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Overwriteable DVD-RW behave much like DVD+RW. "Restricted" refers only to the
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granularity of random access and block size which have always to be aligned to
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full 32 kB. Sequential DVD-RW are converted into overwriteable DVD-RW by
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cdrskin dev=... -v blank=format_overwrite
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@ -475,17 +475,6 @@ Incremental Streaming afterwards. So blank=fast will do full blanking.
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blank=deformat_sequential_quickest is faster but might yield DAO-only media.
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DVD-R
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The specs state that DVD-R behave like sequential DVD-RW except the capability
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to get blanked or formatted. Thus they should be useable like CD-R media (but
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without -audio).
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Blank DVD-R media are accepted as suitable by cdrskin on my drives.
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I got only a few of those one-time recordable media and no real use case.
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So i prefer to start burning my DVD-R only at the end of my endeavor about
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sequential DVD. There's still plenty to do with DVD-RW testing.
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Special compilation variations
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You may get a (super fat) statically linked binary by :
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@ -2,7 +2,7 @@
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.\" First parameter, NAME, should be all caps
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.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
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.\" other parameters are allowed: see man(7), man(1)
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.TH CDRSKIN 1 "February 1, 2007"
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.TH CDRSKIN 1 "February 8, 2007"
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.\" Please adjust this date whenever revising the manpage.
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.\"
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.\" Some roff macros, for reference:
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@ -44,9 +44,11 @@ or in Session at Once mode for seamless tracks.
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.br
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Multi session on CD (follow-up sessions in TAO only)
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.br
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and on DVD-RW (untested yet: on DVD-R).
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and on DVD-RW or DVD-R (in Incremental write mode only).
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.br
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Burning of a single data track to DVD+RW, DVD-RW, DVD-RAM.
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Single session on DVD-RW or DVD-R (Disk-at-once)
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.br
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or on overwriteable DVD+RW, DVD-RW, DVD-RAM.
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.br
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Bus scan, burnfree, speed options, retrieving media info, padding, fifo.
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.br
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@ -125,13 +127,13 @@ Multiple cycles of blanking and overwriting with random numbers might be.
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---------------
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.br
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Note: The support for sequentially recordable media is still emerging.
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DVD-R have not been tested yet.
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.br
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---------------
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.br
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Currently only DVD-RW (and most probably DVD-R) can be used for the Sequential
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recording model. DVD-RW must be in state "Sequential Recording". The media must
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be either blank or appendable. Newly purchased DVD-RW media are in this state.
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Currently only DVD-RW and DVD-R can be used for the Sequential recording model.
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DVD-RW must be in state "Sequential Recording".
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The media must be either blank or appendable.
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Newly purchased DVD-RW and DVD-R media are in this state.
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Used DVD-RW get into blank sequential state by option
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.B blank=deformat_sequential .
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.br
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26
doc/comments
26
doc/comments
@ -6,9 +6,9 @@
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@section intro Introduction
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Libburnia is an open-source project for reading, mastering and writing
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optical discs. For now this means CD-R, CD-RW, DVD-RAM, DVD+RW, DVD-RW.
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DVD-R is untested yet.
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optical discs. For now this means CD-R, CD-RW, DVD-RAM, DVD+RW, DVD-RW, DVD-R.
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Not supported yet are DVD+R, any dual layer media, HD-DVD, BD (blue ray).
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The project comprises of several more or less interdependent parts which
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together strive to be a usable foundation for application development.
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@ -20,9 +20,9 @@ we would need : login on a development machine resp. a live OS on CD or DVD,
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advise from a system person about the equivalent of Linux sg or FreeBSD CAM,
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volunteers for testing of realistic use cases.
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We have a workable code base for burning data and audio CDs. The burn API is
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quite comprehensively documented and can be used to build a presentable
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application.
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We have a workable code base for burning data and audio CDs and many DVD types.
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The burn API is quite comprehensively documented and can be used to build a
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presentable application.
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We have a functional binary which emulates the core use cases of cdrecord in
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order to prove that usability, and in order to allow you to explore libburn's
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scope by help of existing cdrecord frontends.
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@ -32,7 +32,10 @@ scope by help of existing cdrecord frontends.
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- libburn is the library by which preformatted data get onto optical media.
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It uses either /dev/sgN (e.g. on kernel 2.4 with ide-scsi) or
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/dev/hdX (e.g. on kernel 2.6).
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libburn is the foundation of our cdrecord emulation.
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libburn is the foundation of our cdrecord emulation. Its code is
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independent of cdrecord. Its DVD capabilities are learned from
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studying the code of dvd+rw-tools and MMC-5 specs. No code but only
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the pure SCSI knowledge has been taken from dvd+rw-tools, though.
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- libisofs is the library to pack up hard disk files and directories into a
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ISO 9660 disk image. This may then be brought to CD via libburn.
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@ -41,15 +44,18 @@ scope by help of existing cdrecord frontends.
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- cdrskin is a limited cdrecord compatibility wrapper for libburn.
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cdrecord is a powerful GPL'ed burn program included in Joerg
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Schilling's cdrtools. cdrskin strives to be a second source for
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the services traditionally provided by cdrecord.
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the services traditionally provided by cdrecord. Additionally it
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provides libburn's DVD capabilities, where only -sao is compatible
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with cdrecord.
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cdrskin does not contain any bytes copied from cdrecord's sources.
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Many bytes have been copied from the message output of cdrecord
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runs, though.
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See cdrskin/README for more.
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- "test" is a collection of application gestures and examples given by the
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authors of the library features. The main API example of libburn
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is named test/libburner.c .
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authors of the library features. The burn API example of libburn
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is named test/libburner.c . The API for media information inquiry is
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demonstrated in test/telltoc.c .
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Explore these examples if you look for inspiration.
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We plan to be a responsive upstream. Bear with us.
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@ -83,7 +89,7 @@ languages and development tools.
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libburner is a minimal demo application for the library libburn
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(see: libburn/libburn.h) as provided on http://libburn.pykix.org .
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It can list the available devices, can blank a CD-RW or DVD-RW and
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can burn to CD-R, CD-RW, DVD-RAM, DVD+RW, DVD-RW.
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can burn to CD-R, CD-RW, DVD-RAM, DVD+RW, DVD-RW, DVD-R.
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It's main purpose, nevertheless, is to show you how to use libburn and also
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to serve the libburnia team as reference application. libburner does indeed
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