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Made program behavior with --grow_overwriteable_iso more consistent

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This commit is contained in:
Thomas Schmitt
2007-08-28 14:31:42 +00:00
parent c7c94b04ff
commit c40a909956
3 changed files with 137 additions and 103 deletions
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54
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 "August 26, 2007"
.TH CDRSKIN 1 "August 27, 2007"
.\" Please adjust this date whenever revising the manpage.
.\"
.\" Some roff macros, for reference:
@ -200,14 +200,16 @@ Best reader compatibility is achieved without it
.br
Currently types DVD+RW, DVD-RW and DVD-RAM can be overwritten via cdrskin.
.br
DVD+RW and DVD-RAM media get treated as blank media regardless wether they
hold data or not. They need no special initial formatting.
DVD+RW and DVD-RAM media need no special initial formatting. They offer a
single continuous data area for blockwise random access.
.br
Option -audio is not allowed. Only one track is allowed.
Option -multi cannot mark a recognizeable end of overwriteable media.
Therefore -multi is banned unless ISO-9660 images shall be expandable by help
of option --grow_overwriteable_iso.
Without this option or without an ISO-9660 filesystem image present
on media, -toc does not return information about the media content.
on media, -toc does not return information about the media content and
media get treated as blank regardless wether they hold data or not.
.br
Currently there is no difference between -sao and -tao. If ever, then -tao
will be the mode which preserves the current behavior.
@ -296,11 +298,11 @@ Print this list of blanking types.
.TP
all
Blank an entire CD-RW or an unformatted DVD-RW.
(See also --prodvd_cli_compatible)
(See also --prodvd_cli_compatible, --grow_overwriteable_iso)
.TP
fast
Minimally blank an entire CD-RW or blank an unformatted DVD-RW.
(See also --prodvd_cli_compatible)
(See also --prodvd_cli_compatible, --grow_overwriteable_iso)
.TP
format_overwrite
Format a DVD-RW to "Restricted Overwrite". The user should bring some patience.
@ -470,12 +472,6 @@ The following sessions can only be written in -tao mode. -multi is prohibited
with DVD-R[W] DAO write mode. Option --prodvd_cli_compatible eventually makes
-multi tolerable but cannot make it work.
.br
With overwriteable DVD media, -multi cannot mark the end of the session.
So when adding a new session this end has to be determined from the payload.
Currently only ISO-9660 filesystems can be used that way. See option
.B \--grow_overwriteable_iso
for lifting the ban on -multi.
.br
In order to have all filesystem content accessible, the eventual ISO-9660
filesystem of a follow-up
session needs to be prepared in a special way by the filesystem formatter
@ -486,6 +482,12 @@ To retrieve an archive file which was written as follow-up session,
you may use option -toc to learn about the "lba" of the desired track number.
This lba is the address of the 2048 byte block where the archive begins.
.br
With overwriteable DVD media, -multi cannot mark the end of the session.
So when adding a new session this end has to be determined from the payload.
Currently only ISO-9660 filesystems can be used that way. See option
.B \--grow_overwriteable_iso
for lifting the ban on -multi.
.br
Note: -multi might make DVD media unreadable in some DVD-ROM drives.
.TP
.BI \-nopad
@ -707,25 +709,31 @@ but adapted to the usage model of
.B cdrskin -msinfo ; mkisofs -C -M | cdrskin [-multi] -
.br
--grow_overwriteable_iso does not hamper the use of true multi-session media.
It demands nevertheless that the track source is a ISO-9660 filesystem image.
With overwriteable media and no option blank=fast|all present it expands an
eventual ISO-9660 filesystem. It is assumed that this image's inner size
description points to the end of the valuable data on media.
I.e. it is possible to use the same cdrskin options with both kinds of media
and to achieve similar results if ISO-9660 filesystem images are to be written.
This option implies option -isosize and therefore demands that the track
source is a ISO-9660 filesystem image.
.br
Options -msinfo and -toc will then work for overwriteables. -toc will always
show a single session with its size increasing with every added mkisofs image.
With overwriteable media and no option blank=fast|all present it expands an
eventual ISO-9660 filesystem on media. It is assumed that this image's inner
size description points to the end of the valuable data.
Overwriteable media with a recognizeable ISO-9660 size will be regarded as
appendable rather than as blank. I.e. options -msinfo and -toc will work.
-toc will always show a single session with its size increasing with
every added mkisofs image.
.br
If not overriden by option write_start_address=, the track with the new image
will be placed behind the end of the old one. One may use option
assert_write_lba= to make sure that media state and mkisofs job do match.
.br
--grow_overwriteable_iso causes option blank=fast|all to invalidate an
eventual ISO-9660 image by altering the first few bytes of block 16 on
overwriteable media.
.br
If not overriden by option write_start_address=, the track with the new image
will be placed at the end of the old one. One may use option assert_write_lba=
to make sure that media state and mkisofs job do match.
Option -multi is tolerated in order not to hamper true multi-session media.
.br
Note: The equivalent of growisofs -Z is
.br
(mkisofs | cdrskin --grow_overwriteable_iso blank=fast [-multi])
.B mkisofs | cdrskin --grow_overwriteable_iso blank=fast [-multi]
.br
growisofs -dvd-compat is roughly equivalent to cdrskin without option -multi.
.TP