Package: dvd+rw-tools
Version: 5.21.4.10.8-1
Severity: normal
When writing to a DL DVD, growisofs checks whether the data to be
written will occupy >50% of the disk and, if not, refuses the
write operation with the message:
use single layer media for this recording
This is good advice for penny-pinchers but when the DVD is being
used as an offsite backup medium by an automated process, saving a
few dollars is not revelant. The fact that this "advice" cannot be
overridden (e.g. by a --force-wasteful-write-to-dl-dvd option) makes
this misfeature serious enough to describe it as a bug.
(Background to explain why this is an issue: Our backup job runs on
Thursday nights. Generating the backup data, writing it and then
reading it back to verify it takes a number of hours. Someone visits
on Fridays to take the written disk offsite and insert a new blank.
The amount of data to be written varies from week to week (sometimes
more than 4.7GB, sometimes less) and isn't determined until six days
after the blank disc is inserted. The person who rotates the disc
(a) does not have a supply of single layer DVDs to insert and, even
if he did, (b) can't hang around for hours while the job re-runs.)
- Raz
-- System Information:
Debian Release: 3.1
Architecture: i386 (i686)
Kernel: Linux 2.6.12-1-686
Locale: LANG=en_AU, LC_CTYPE=en_AU (charmap=ISO-8859-1)
Versions of packages dvd+rw-tools depends on:
ii libc6 2.3.2.ds1-22 GNU C Library: Shared libraries an
ii libgcc1 1:3.4.3-13 GCC support library
ii libstdc++5 1:3.3.5-13 The GNU Standard C++ Library v3
ii mkisofs 4:2.01+01a01-2 Creates ISO-9660 CD-ROM filesystem
-- no debconf information
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