![]() i was able to get ddrescue to produce an iso and then decrypt it similar to the procedure detailed here, but it still fails at the same spot complaining of corrupted files. Happy to know that my hacky workaround can work with MakeMKV!Ĭan you share your script? i'm trying to salvage an apparently damaged blu ray but not having any luck getting past a certain spot. I wrote a script to clone segment by segment, and toss any segments with I/O errors in them, reripping just those segments after re-inserting the disc. I've ripped a few UHD discs with MakeMKV alone, but sometimes these (brand-new) discs produce I/O errors partway through ripping. You can open it in MakeMKV as usual.įor what it's worth, I have the Asus BW-16D1HT, 3.02 firmware (updated from 3.0), in a Vantec NST-536S3-BK NexStar DX USB enclosure. The moment MakeMKV starts copying the files, abort the backup, eject the disc, quit MakeMKV.Ĭopy file discatt.dat from folder #2 to folder #1įolder #1 is now a non-decrypted full disc backup. Then you need to start MakeMKV and make a non-decrypted full disc backup, from the same disc and in the same drive, to another folder #2. You will need to unpack the iso (with winrar, or mount and copy all files from) to a folder #1. It's unknown if there is a similar makemkvcon command to generate the file without starting a disc backupĬode: -ġ0:26:39 - RDKfromMMKV 0.05 -ġ0:26:39 - Drive >EE:\Users\renan\AppData\Local\Temp\RDKfromMMKV_20230729_102639\discatt.dat6B9F58D60858AD3161D22EE693BA11D8AA6E35F031825E0CA73FC8697C37566BB0EA570C72E1395B5F4C18110140A7940D108D0785CEC94DC:\Users\renan\AppData\Roaming\aacs\keydb.Mike admin wrote:Yes, if you have made the iso from exactly the same disc, with exactly the same drive on exactly the same firmware version. ![]() MakeMKV used to include the tool cddump.exe to generate the discatt.dat but it has been removed. If MakeMKV is allowed to enable LibreDrive a power off is need to reset your drive and allow VLC to play bus encrypted discs key colors, 718 Low-value colors, 718 M Maintenance plan, 842 MakeMKV program, 211 margin property, 315319 in design, 318319, 319f effects, 319f for. There is NO POINT in sharing these keys as they will not work for anyone else RDK unlike the other keys are disc+drive specific. Put both VID and MK in keydb.cfg to get the VUK in the. it seems libaacs has some bugs in aacs keys calculation flow. Besides libaacs also aacskeys supports input of VID instead of using a HC Device Keys for MK retrieval are public for up to MKBv71. VID in combination with MK can be used to calculate VUK/UK. VID can also be put in the KEYDB.cfg file instead of the local cache Warning: in case the firmware of a drive is updated, the RDK for all discs possible changes The RDK for the disc is unique for every drive so repeat the steps for all your drives that support bus encryption As of this moment, this is v1.15.1 or later The following steps are performed on Windows but they are similar for Linux & MacĬhoose a version that has an unrevoked HC. ![]() Update: Following programs automate the steps below Please support MakeMKV for the work that they do. This is based purely on public information released by MakeMKV but it is nonobvious. This guide shows you how to get these keys from MakeMKV. Just like FindVUK can get VUK/UK from DVDFab, it's possible to get VID/RDK from other players or rippers that contain an unrevoked HC. However, to have this RDK in the libaacs cache, the disc had to be played before the certificate was revoked. libaacs 0.11.0 supports cached RDK keys allowing playback of bus encrypted discs without a valid HC. The RDK affects a minority of BD discs but 100% of UHD discs. However RDK is unique for every drive and cannot be shared in the same way. VLC), this causes problems for new and old (!) discs as the HC is needed to retrieve the VID (aacs decryption) and the RDK (bus encryption) unless keys are cached or available in KEYDB.cfg.Įven though VID is always needed in theory to retrieve VUK/UK, in practice this is not a problem because these keys can be found using FindVUK or by downloading FindVUK's KEYDB.cfg containing a large database of keys. When relying on libaacs for playback (e.g. As the amount of discs with a newer MKB version increases, more and more people will find themselves in the situation where their drives have permanently revoked this HC. The last known public Host Certificate (HC) needed for Blu-ray playback has been revoked in MKBv72.
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