When to decrypt backup, and when not to decrypt

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Mysus456
Posts: 17
Joined: Fri Aug 10, 2018 4:02 am

When to decrypt backup, and when not to decrypt

Post by Mysus456 » Tue Feb 26, 2019 4:17 am

What is the general consensus when backing up BD (or UHD) discs? Decrypt or not?
Ive seen a few posts that some programs want the original "signatures", so in those cases don't.

Should I be decrypting all, with the exception being for some (or vice versa)?

My workflow is backup disk (no decryption), then from backup MKV main title saved to Plex.
I backed up a star is born, but could not decrypt the backup. To complete my process, I had to decrypt the initial backup. Should I be decrypting all my backups?
[Retraining the kids to not use the discs seems tougher than it should be]

Best I could find on the subject:
https://www.reddit.com/r/DataHoarder/co ... ed_backup/


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Woodstock
Posts: 7370
Joined: Sun Jul 24, 2011 11:21 pm

Re: When to decrypt backup, and when not to decrypt

Post by Woodstock » Tue Feb 26, 2019 4:34 am

Do you want to play it? Decrypt.

If you don't, any device you decide to play the file will have to understand BD encryption.

The other question you don't ask, "Why use backup, rather than open/write to MKV files?"
How to aid in finding the answer to your problem: https://www.makemkv.com/faq/item/8

Mysus456
Posts: 17
Joined: Fri Aug 10, 2018 4:02 am

Re: When to decrypt backup, and when not to decrypt

Post by Mysus456 » Sat Mar 02, 2019 7:40 pm

movie extras for backup, I usually dont save them when writing main title.
Also, in case I miss a forced sub. my process has evolved, and now I write all subs.

coneslayer
Posts: 12
Joined: Tue Sep 04, 2018 10:54 pm

Re: When to decrypt backup, and when not to decrypt

Post by coneslayer » Sat Mar 02, 2019 8:06 pm

Woodstock wrote:
Tue Feb 26, 2019 4:34 am
The other question you don't ask, "Why use backup, rather than open/write to MKV files?"
You rented a Lionsgate disc, and might discover that you ripped the wrong playlist.

Mysus456
Posts: 17
Joined: Fri Aug 10, 2018 4:02 am

Re: When to decrypt backup, and when not to decrypt

Post by Mysus456 » Sun Mar 03, 2019 7:24 pm

Woodstock wrote:
Tue Feb 26, 2019 4:34 am
Do you want to play it? Decrypt.

If you don't, any device you decide to play the file will have to understand BD encryption.

The other question you don't ask, "Why use backup, rather than open/write to MKV files?"
Since decrypting from HD is faster than disk, am I good getting a "1:1" copy if I decrypt my backup? Or would I need to back up again from the bluray and select decrypt?

smartieyoung
Posts: 137
Joined: Sun Dec 24, 2017 11:09 am
Location: kentucky

Re: When to decrypt backup, and when not to decrypt

Post by smartieyoung » Mon Mar 04, 2019 4:52 pm

i would think you would want to make a regular nondecrypted backup first and then once that is done close and reopen makemkv and open the index file in the encrypted backup that should let you decrypt the whole file at least this is the process that works for me .let me know if you have any questions I would be more then happy to help

Grauhaar
Posts: 566
Joined: Thu Sep 15, 2016 3:46 pm

Re: When to decrypt backup, and when not to decrypt

Post by Grauhaar » Mon Mar 04, 2019 7:39 pm

Why?
Why this complicated process? A backup takes longer, because all files (!!!) are copied to HDD. It makes no difference to decrypt or not the backup to save some time to create later the movie MKV file from the backup.The fastest way is always to create the movie MKV file (or whatever) direct from disc to HDD.
Good Luck :)
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