Failure to read a Bluray disk with 'dvdbackup' command

Bernt Hansson bah at
Sun Apr 10 19:56:40 UTC 2016

On 2016-04-10 21:24, jd1008 wrote:
> On 04/10/2016 07:18 AM, Fabian Keil wrote:
>> Yuri <yuri at> wrote:
>>> My attempts to backup a Bluray disk with this command fail:
>>> # dvdbackup -M
>>> libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
>>> libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
>>> libdvdread: Can't open file VIDEO_TS.BUP.
>>> Cannot open Video Manager (VMG) info.
>>> Mirror of DVD failed
>> Like the name indicates, dvdbackup is for DVDs. Blurays aren't DVDs.
>> Fabian
> 1.  The encryption scheme in BD is different to that of DVD
> 2.  OpenSource has yet to produce tools and libs to read/write BD's
> 3.  Eve if you back up using dd, read of BD media will fail.
Videolan have some info.

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