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Date:      Sun, 10 Apr 2016 13:24:28 -0600
From:      jd1008 <jd1008@gmail.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: Failure to read a Bluray disk with 'dvdbackup' command
Message-ID:  <570AA86C.5010705@gmail.com>
In-Reply-To: <20160410151811.4bf577c9@fabiankeil.de>
References:  <5702C29A.5050208@rawbw.com> <20160410151811.4bf577c9@fabiankeil.de>

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




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