Failure to read a Bluray disk with 'dvdbackup' command

[jd1008]

On 04/10/2016 07:18 AM, Fabian Keil wrote:
> Yuri <yuri at rawbw.com> 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.