CSS Encrypted Backup to ISO for DVD and Bluray on Linux

[Absolve6780]

Hi all,

I wanted to find a method that works for both DVD and Blurays that allows for backing up / cloning on Linux with CSS intact. In MakeMKV, I see the decrypt checkbox checked (and unable to be unchecked) when I try to back up DVDs. For Blurays, that option can be toggled on and off in my experience. I am currently running either of the following:

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dd if=/dev/sr0 bs=2048 count=xxxxxxx of=filename.iso

OR

ddrescue -b 2048 /dev/sr0 test2.iso

Both are readable in MakeMKV after they complete. Running a

Code: Select all

diff file1.iso file2.iso

comes back empty. My questions are the following:

• Which option is better?

• Is there a command better suited for this?

• Is this the best approach to clone all of your DVDs/Blurays digitally?

I would just like to have a 1:1 copy of the disk (Bluray and DVD), so I can burn it on a disk (DVD or Bluray) later on if/when disk rot hits the disks.

I would love any additional advice in this area as well.

Thanks!