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Took into respect new info from Andy Polyakov about closing DVD+-R

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This commit is contained in:
Thomas Schmitt 2007-08-02 08:32:50 +00:00
parent 4d0b61a904
commit 7f1c0b00ee
2 changed files with 28 additions and 6 deletions
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17
libburn/trunk/cdrskin/cdrskin.1
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@ -190,6 +190,11 @@ DVD+R.
Quite deliberately write mode -sao insists in the tradition of a predicted Quite deliberately write mode -sao insists in the tradition of a predicted
track size and blank media, whereas -tao writes the tracks open ended and track size and blank media, whereas -tao writes the tracks open ended and
allows appendable media. allows appendable media.
.br
.B Note:
Option -multi might make DVD media unreadable in some DVD-ROM drives.
Best reader compatibility is achieved without it
(i.e. by single session media).
.PP .PP
.B Overwriteable DVD Media: .B Overwriteable DVD Media:
.br .br
@ -466,6 +471,9 @@ which can be retrieved by cdrskin option -msinfo.
.br .br
To retrieve an archive file which was written as follow-up session, 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. 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
Note: -multi might make DVD media unreadable in some DVD-ROM drives.
.TP .TP
.BI \-nopad .BI \-nopad
Do not add trailing zeros to the data stream. Nevertheless, since there seems Do not add trailing zeros to the data stream. Nevertheless, since there seems
@ -796,9 +804,12 @@ This option overrides option -multi. It will not fill up media if option -sao
is given with CD media. is given with CD media.
.br .br
.B Caution: .B Caution:
This option might increase read compatibility with DVD-ROM drives but With multi-session media this option might increase readatibility on DVD-ROM
with some DVD recorders and media types it might also fail to produce readable drives but with some DVD recorders and media types it might also fail to
media at all. "Your mileage may vary". produce readable media at all. "Your mileage may vary".
.br
You can expect the best possible read compatibility if you do not use -multi at
all.
.TP .TP
.BI grab_drive_and_wait= seconds .BI grab_drive_and_wait= seconds
Open the addressed drive, wait the given number of seconds, release the drive, Open the addressed drive, wait the given number of seconds, release the drive,

15
libburn/trunk/doc/cookbook.txt
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@ -1088,8 +1088,19 @@ closed by Close Function 101b rather than 010b. This finalizes the media
"with minimal radius". "with minimal radius".
(mmc5r03c.pdf 6.3.3.4.4) (mmc5r03c.pdf 6.3.3.4.4)
Note: growisofs has code for that gesture but explicitly avoids to use it. Note: growisofs has code for that gesture but explicitly avoids to use it, if
Instead it recommends to fill up the media with zeros. the media was appendable before writing began. Instead it recommends to fill
up the media with zeros. This gesture nevertheless caused error replies from
the drives in my own experiments.
The reason given by Andy Polyakov is that some DVD-ROM drives get mislead by
the lead-out information of (formerly) appendable media unless the media is
fully written.
(http://fy.chalmers.se/~appro/linux/DVD+RW/ , "Compatibility: caveat lector")
Own experiments showed no such problems with PC attached PATA DVD-ROM drives.
For best DVD-ROM compatibility one should avoid appendable media at all
by closing them already after the first session.
------------------------------------------------------------------------------- -------------------------------------------------------------------------------
Hearsay about DVD+R/DL (Dual Layer) : Hearsay about DVD+R/DL (Dual Layer) :