Clarified CD and DVD peculiarities
This commit is contained in:
parent
cad9c14849
commit
c5edc42f2f
@ -125,10 +125,7 @@ Multiple cycles of blanking and overwriting with random numbers might be.
|
||||
---------------
|
||||
.br
|
||||
Note: The support for sequentially recordable media is still emerging.
|
||||
.br
|
||||
DVD-R have not been tested yet. If no Incremental Streaming feature (21h)
|
||||
is offered, then the media is regarded as unsuitable without further
|
||||
explanation. (One can torture DVD-RW to make them offer only DAO (2Fh)).
|
||||
DVD-R have not been tested yet.
|
||||
.br
|
||||
---------------
|
||||
.br
|
||||
@ -139,16 +136,28 @@ Used DVD-RW get into blank sequential state by option
|
||||
.B blank=deformat_sequential .
|
||||
.br
|
||||
Incremental Streaming is the default write mode if it is offered by the media.
|
||||
It may be selected explicitely by option -tao as it resembles much TAO writing
|
||||
with CD by allowing track sources of unpredicted length and to keep media
|
||||
appendable by option
|
||||
It may be selected explicitely by option
|
||||
.B -tao
|
||||
as it resembles much CD TAO by allowing track sources of
|
||||
unpredicted length and to keep media appendable by option
|
||||
.B -multi .
|
||||
Only restriction towards CD-RW is the lack of support for -audio tracks.
|
||||
The only restriction towards CD-R[W] is the lack of support for -audio tracks.
|
||||
Multiple tracks per session are permissible.
|
||||
.br
|
||||
(The other write mode, DAO, is not implemented yet. It will allow no -multi and
|
||||
only a single track. It will be selected explicitely by option -sao or by
|
||||
default if no Incremental writing is available.)
|
||||
The other write mode, DAO, has many restrictions. It does not work with
|
||||
appendable media, allows no -multi and only a single track. The size of the
|
||||
track needs to be known in advance. So either its source has to be a disk file
|
||||
of recognizable size or the size has to be announced explicitely by options
|
||||
.B tsize=
|
||||
or
|
||||
.B tao_to_sao_tsize= .
|
||||
.br
|
||||
DAO is the default mode for media which do not offer feature 21h Incremental
|
||||
Streaming. It may also be selected explicitely by option
|
||||
.B -sao .
|
||||
.br
|
||||
Program growisofs uses DAO on sequential DVD-R[W] media for maximum
|
||||
DVD-ROM/-Video compatibility.
|
||||
.PP
|
||||
.B Overwriteable DVD Media:
|
||||
.br
|
||||
@ -233,7 +242,7 @@ audio track. Same is done for suffix .au and SUN Audio.
|
||||
Option -audio may be used only with CD media and not with DVD.
|
||||
.TP
|
||||
.BI blank= type
|
||||
Blank a CD-RW or format a DVD+/-RW.
|
||||
Blank a CD-RW, a DVD-RW, or format a DVD+/-RW.
|
||||
This is combinable with burning in the same run of cdrskin.
|
||||
The type given with blank= selects the particular behavior:
|
||||
.RS
|
||||
@ -245,7 +254,7 @@ all
|
||||
Blank an entire CD-RW or an unformatted DVD-RW.
|
||||
.TP
|
||||
fast
|
||||
Minimally blank an entire CD-RW or an unformatted DVD-RW.
|
||||
Minimally blank an entire CD-RW or fully blank an unformatted DVD-RW.
|
||||
.TP
|
||||
format_overwrite
|
||||
Format a DVD-RW to "Restricted Overwrite". The user should bring some patience.
|
||||
@ -273,7 +282,12 @@ deformat_sequential
|
||||
Like blank=all but with the additional ability to blank overwriteable DVD-RW.
|
||||
This will destroy their formatting and make them sequentially recordable.
|
||||
.br
|
||||
(Note: blank=deformat_sequential is not an original cdrecord option.)
|
||||
(Note: blank=deformat_sequential* are not original cdrecord options.)
|
||||
.TP
|
||||
deformat_sequential_quickest
|
||||
Like blank=deformat_sequential but blanking DVD-RW only minimally.
|
||||
This is faster than full blanking but may yield media incapable of
|
||||
Incremental Streaming (-tao).
|
||||
.RE
|
||||
.TP
|
||||
.BI \-checkdrive
|
||||
@ -281,7 +295,8 @@ Retrieve some info about the addressed drive.
|
||||
Exits with non-zero value if the drive cannot be found and opened.
|
||||
.TP
|
||||
.BI \-dao
|
||||
Alias for option -sao. Write disc in Session at Once mode.
|
||||
Alias for option -sao. Write CD in Session at Once mode
|
||||
or DVD-R[W] in Disc-at-once mode.
|
||||
.TP
|
||||
.BI \-data
|
||||
Subsequent tracks are data tracks. This option is default and only needed
|
||||
@ -311,8 +326,8 @@ even if attempted explicitely via "driveropts=burnfree".
|
||||
.TP
|
||||
.BI \-dummy
|
||||
Try to perform the drive operations without actually affecting the inserted
|
||||
media. There is no guarantee that this will work with a particular drive
|
||||
in a particular write mode. Blanking is prevented reliably, though.
|
||||
media. There is no guarantee that this will work with a particular combination
|
||||
of drive, media, and write mode. Blanking is prevented reliably, though.
|
||||
.TP
|
||||
.BI \-eject
|
||||
Eject the disc after work is done.
|
||||
@ -365,12 +380,13 @@ start address of the next session to be appended. The string is empty if
|
||||
the most recent session was not written with option -multi.
|
||||
.TP
|
||||
.BI \-multi
|
||||
This option keeps the CD or DVD-R[W] appendable after the current session has
|
||||
been written.
|
||||
This option keeps the CD or unformatted DVD-R[W] appendable after the current
|
||||
session has been written.
|
||||
Without it the disc gets closed and may not be written any more - unless it
|
||||
is a -RW and gets blanked which causes loss of its content.
|
||||
.br
|
||||
The following sessions can only be written in -tao mode.
|
||||
The following sessions can only be written in -tao mode. -multi is prohibited
|
||||
with overwriteable DVD media and with DVD-R[W] DAO write mode.
|
||||
.br
|
||||
In order to have all filesystem content accessible, the eventual ISO-9660
|
||||
filesystem of a follow-up
|
||||
@ -403,11 +419,20 @@ then behave strange or even go bad for the next few attempts to burn a CD.
|
||||
One should use it only if inavoidable.
|
||||
.TP
|
||||
.BI \-sao
|
||||
Write disc in Session At Once mode. This mode is able to put several audio
|
||||
tracks on CD without producing audible gaps between them. It can only
|
||||
be used for tracks of fixely predicted size. This implies that track arguments
|
||||
which depict stdin or named pipes need to be preceeded by option tsize= or
|
||||
by option tao_to_sao_tsize=.
|
||||
Write CD in Session At Once mode, resp. a sequential DVD-R[W] in Disc-at-once
|
||||
(DAO) mode.
|
||||
.br
|
||||
With CD this mode is able to put several audio tracks on media without
|
||||
producing audible gaps between them.
|
||||
.br
|
||||
With DVD-R[W] this mode can only write a single track.
|
||||
No -multi is allowed with DVD-R[W] -sao.
|
||||
.br
|
||||
-sao can only be used for tracks of fixely predicted size. This implies that
|
||||
track arguments which depict stdin or named pipes need to be preceeded by
|
||||
option tsize= or by option tao_to_sao_tsize=.
|
||||
.br
|
||||
-sao cannot be used on appendable media.
|
||||
.TP
|
||||
.BI \-scanbus
|
||||
Scan the system for drives. On Linux the drives at /dev/s* and at /dev/hd*
|
||||
@ -437,10 +462,13 @@ Less guesswork is needed if track sources are in format MS-WAVE in a file with
|
||||
suffix ".wav".
|
||||
.TP
|
||||
.BI \-tao
|
||||
Write disc in Track At Once (TAO) mode. This mode can be used with track
|
||||
sources of unpredictable size, like standard input or named pipes. It is
|
||||
also the only mode that can be used for writing to appendable CD or DVD-R[W]
|
||||
which already hold data.
|
||||
Write CD in Track At Once (TAO) mode, resp. sequential DVD-R[W] in Incremental
|
||||
Streaming mode. This mode also applies pro-forma to overwriteable DVD media.
|
||||
.br
|
||||
Mode -tao can be used with track sources of unpredictable size, like standard
|
||||
input or named pipes. It is also the only mode that can be used for writing
|
||||
to appendable media which already hold data. With unformatted DVD-R[W] it is
|
||||
the only mode which allows -multi.
|
||||
.TP
|
||||
.BI \-toc
|
||||
Print the table of content (TOC) which describes the tracks recorded on disc.
|
||||
@ -476,7 +504,7 @@ About size specifiers, see option fs=.
|
||||
If the track source does not deliver the predicted amount of bytes, the
|
||||
remainder of the track is padded with zeros. This is not considered an error.
|
||||
If on the other hand the track source delivers more than the announced bytes
|
||||
then the track on CD gets truncated to the predicted size and cdrskin exits
|
||||
then the track on media gets truncated to the predicted size and cdrskin exits
|
||||
with non-zero value.
|
||||
.TP
|
||||
.BI \-v
|
||||
@ -538,6 +566,19 @@ interpretation of eventual startup files. See section FILES below.
|
||||
.TP
|
||||
.BI \--single_track
|
||||
Accept only the last argument of the command line as track source address.
|
||||
.TP
|
||||
.BI tao_to_sao_tsize= size
|
||||
Set an exact fixed size for the next track to be in effect only if the track
|
||||
source cannot deliver a size prediction and no tsize= was specified and an
|
||||
exact track size prediction is demanded by the write mode.
|
||||
.br
|
||||
This was the fallback from bad old times when cdrskin was unable to burn
|
||||
in mode -tao . It came back with minimally blanked DVD-RW which allow no
|
||||
Incremental Streaming (-tao) resp. with explicitly selected write mode -sao
|
||||
for best DVD-ROM compatibility.
|
||||
.br
|
||||
If the track source delivers less bytes than announced then the missing ones
|
||||
will be filled with zeros.
|
||||
.TP
|
||||
.BI write_start_address= byte_offset
|
||||
Set the address on media where to start writing the track. With DVD+RW or
|
||||
@ -607,8 +648,8 @@ On signals exit even if the drive is in busy state. This is not a very good
|
||||
idea. You might end up with a stuck drive that refuses to hand out the media.
|
||||
.TP
|
||||
.BI \--no_blank_appendable
|
||||
Refuse to blank appendable CD-RW. This is a feature that was once builtin with
|
||||
libburn. No information available for what use case it was needed.
|
||||
Refuse to blank appendable CD-RW or DVD-RW. This is a feature that was once
|
||||
builtin with libburn. No information available for what use case it was needed.
|
||||
.TP
|
||||
.BI \--no_convert_fs_adr
|
||||
Do only literal translations of dev=. This prevents cdrskin from test-opening
|
||||
@ -625,12 +666,6 @@ Linux specific:
|
||||
Use and report literal Bus,Target,Lun addresses rather than real SCSI and
|
||||
pseudo ATA addresses. This method is outdated and was never compatible with
|
||||
original cdrecord.
|
||||
.TP
|
||||
.BI tao_to_sao_tsize= size
|
||||
Set an exact fixed size for the next track to be in effect only if the track
|
||||
source cannot deliver a size prediction and no tsize= was specified.
|
||||
This is the fallback from bad old times when cdrskin was unable to burn
|
||||
in mode -tao.
|
||||
.br
|
||||
.SH EXAMPLES
|
||||
.SS
|
||||
@ -664,7 +699,7 @@ cdrskin -v dev=/dev/sr0 blank=format_overwrite
|
||||
.br
|
||||
cdrskin -v dev=/dev/sr0 blank=deformat_sequential
|
||||
.SS
|
||||
.B Write ISO-9660 filesystem image:
|
||||
.B Write ISO-9660 filesystem image as only one to blank or formatted media:
|
||||
.br
|
||||
cdrskin -v dev=/dev/hdc speed=12 fs=8m \\
|
||||
.br
|
||||
@ -676,11 +711,11 @@ find . | afio -oZ - | \\
|
||||
.br
|
||||
cdrskin -v dev=0,1,0 fs=32m speed=8 \\
|
||||
.br
|
||||
padsize=300k -tao -
|
||||
-tao padsize=300k -
|
||||
.SS
|
||||
.B Write several sessions to the same CD or DVD-R[W]:
|
||||
.br
|
||||
cdrskin dev=/dev/hdc -v padsize=300k -multi 1.iso
|
||||
cdrskin dev=/dev/hdc -v padsize=300k -multi -tao 1.iso
|
||||
.br
|
||||
cdrskin dev=/dev/hdc -v padsize=300k -multi -tao 2.iso
|
||||
.br
|
||||
|
||||
Loading…
Reference in New Issue
Block a user