Problems opening backup blu ray

[pizzlemac]

Hi there, I'm new to this forum and relatively new to ripping blu ray. I've been successfully ripping my blu ray collection for some weeks now using MakeMKV, but I've just started trying to rip my Star Wars blu ray box set and I've encountered my first problem.
I can not get The Phantom Menace to rip at all, I've even created a full backup of the disc which worked fine, but then when I try to open the backup file in MakeMKV it says "The volume key is unknown for this disc - video can't be decrypted"

Any help would be really appreciated

[pizzlemac]

Sorry, should've also said that I'm using the latest version 1.7.4 on OSX 10.7.3 if that's any help

[crowfax]

Turn on debugging in the MakeMKV options and post the entire log.

[pizzlemac]

Hi there, sorry for the wait. The same thing is happening with "A New Hope" this is the message I get when trying to open the full backup version.
Any ideas??

MakeMKV v1.7.4 darwin(x86-release) started
Debug logging enabled, log will be saved as /Users/janeponder/MakeMKV_log.txt
Optical drive "DVD+R-DL OPTIARC DVD RW AD-7170A 1.NC" opened in OS access mode.
It's highly recommended to install DASPI kernel extension to improve performance.
Optical drive "BD-RE PIONEER BD-RW BDR-205 1.03" opened in OS access mode.
Opening files on harddrive at /Users/janeponder/Movies/backup/A_NEW_HOPE/
The volume key is unknown for this disc - video can't be decrypted
DEBUG: Code 0 at V}:Tpr{?$vX|QHwz:121263544
DEBUG: Code 0 at V}:Tpr{?$vX|QHwz:29396897
Failed to open disc

[Romansh]

http://www.makemkv.com/faq/item/11
http://www.makemkv.com/faq/item/12

Alternatively, ditch your backup and create a new, decrypted backup (i.e. make sure the relevant checkbox is selected when doing a backup).