Improved man page of cdrskin about -force after enabling overburning in libburn

master
Thomas Schmitt 1 year ago
parent 7765fbd1ab
commit d4d63213ab
  1. 31
      cdrskin/cdrskin.1

@ -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 "Version 1.5.5, Sep 12, 2021"
.TH CDRSKIN 1 "Version 1.5.5, Nov 19, 2021"
.\" Please adjust this date whenever revising the manpage.
.\"
.\" Some roff macros, for reference:
@ -573,9 +573,14 @@ Eject the disc after work is done.
.TP
.BI \-force
Assume that the user knows better in situations when cdrskin or libburn are
insecure about drive or media state. This includes the attempt to blank
refusing because of concerns about drive or media state.
.br
.B Caution:
Use option -force only when in urgent need.
.br
This option enables the attempt to blank
media which are classified as unknown or unsuitable, and the attempt to use
write modes which libburn believes they are not supported by the drive.
write modes of which libburn believes they are not supported by the drive.
.br
Another application is to enforce blanking or re-formatting of media
which appear to be in the desired blank or format state already.
@ -584,10 +589,22 @@ This option enables a burn run with option -dummy even if libburn believes
that drive and media will not simulate the write mode but will write for real.
.br
It enables a burn run where cdrskin expects to exceed the available media
capacity.
.br
.B Caution:
Use this only when in urgent need.
capacity. This is known as "overburn" and might succeed on CD media with
write type SAO.
.B Too much overburning
might be
.B harmful to the medium
and might
.B make the drive unusable
(hopefully only until it gets powered off and on). The man page of cdrecord
mentions 88 seconds = 6600 blocks as halfways safe amount over the official
medium capacity. The assessment of track sizes by libburn will be wrong if
the written size reaches or exceeds 90 minutes = 405000 sectors. The overall
medium size assessment by the Linux kernel is supposed to yield roughly the
written size, but you should test this yourself with every overburnt medium.
.br
First consider to use a medium with more capacity rather than trying to
overburn a CD.
.TP
.BI \-format
Same as blank=format_overwrite_full -force but restricted to DVD+RW.

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