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24th January 2007, 20:02 | #166 | Link |
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Janvitos told me he didn't seen that, but is there anyone who have seen a Blu-ray movie with more than one CPS unit key per disc? This will help me doing the volume key thing...
Look in the Unit_key_ro.inf file. Last edited by muslix64; 24th January 2007 at 20:04. |
24th January 2007, 20:26 | #170 | Link |
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the fugitive should be playable on a PS3 because the movie is regionfree
PS3 JAPAN Region A Movies (Japan / Asia / USA) PS3 ASIA Region A Movies (Japan / Asia / USA) PS3 US i dont know.. let's talk in a ps3 thread, because this thread is about blu-ray and aacs... ps: have a look at blu-ray regionfree movies at http://bluray.lindsite.dk/ Last edited by 2bigkings; 24th January 2007 at 20:34. |
24th January 2007, 20:30 | #171 | Link |
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2bigkings, that will be the next step once we get ime working and a single app to do everything in backuphddvd and backupbluray. there is probably some bytes somewhere on the discs which tell the player what region it is, im sure we will find out where those bytes are and change the discs to ripped discs to multiregion, or even hack the firmware to multi-region.
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24th January 2007, 21:18 | #172 | Link |
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I heard that Standalone Blu-ray Players only can playback
AACS protected Discs.Would it be possible that this is the case with the PS3?On this Forum it has been reported that a backup from 5th Element on a SL Blu-ray R was working in a Samsung Player.How was this done exactly? |
24th January 2007, 23:43 | #174 | Link |
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>>>>>It sems that you trully mad esome investing sacrifice and I just hope that we al get benefif from it and even more is we all could do some kind of reward of yoyr financial and time investment to aou r common cause !
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24th January 2007, 23:48 | #175 | Link | |
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Quote:
I'm assuming that the device key is also at one time present in the memory dump, and the title key is the known plaintext from the disc header. Thus, the attack described could in theory be used to try to decrypt the disc header to see if parts of it matches the title key. The device key is probably discarded just after use, so a more elaborate memory dump scheme is probably needed.
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24th January 2007, 23:54 | #177 | Link |
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PS3 blu-ray compatibility with burned media
I'm glad I can finally be of some help to this cause. So, the reason your PS3 cannot play your burned BD-R or BD-RE disc is because the Firmware isn't supporting it yet. We are on Firmware 1.5, and this feature won't be supported until at least 2.0.
I noticed someone mentioned it worked with the Samsung BD player, and that is great because the PS3 slowly but surely takes everything every other player can do and does it better with Firmware upgrades. I have burners and PS3's available to do testing with, I just need enough HDD space hehe.
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25th January 2007, 19:11 | #178 | Link | |
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Quote:
The media key in the MKB on the disc is encrypted using a number of keys (say n times with n keys), this number is dependent on the number of actual revocations (the larger the number of revocations, the more encrypted entries you will find). The device will search for a working key in it's device key set (complicated search using the uv masks, the device number, the device keyset, and a key derivation alg...) and will be able to use it to decrypt just one of the n encrypted media key entries. If the device is revoked it will not find a matching key in it's set and will not be able to get to the title key. So in order to use this 'device key mechanism', one needs to discover all the keys assigned to a player and their corresponding u,v subtree mask + the device number! So this is a lot more then finding 128 consecutive bits in memory. In fact I consider the AACS spec quite secure and a 'real crack' would include cracking AES-128. The funny thing is that this whole complex MKB decoding algorithm is bypassed by a trick based on finding the title key immediately in memory. |
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26th January 2007, 04:51 | #179 | Link |
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hopefully there will be such tools available for linux too...
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26th January 2007, 14:42 | #180 | Link |
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The problem is that some devices only play BDAV and not BDMV if the support is a BD-RE or a BD-R.
BDAV= format for home made HD videos BDMV= format for pre-recorded HD film The Samsung BD-P1000 & the Panasonic BD-10 CAN play BDMV (so the ripped film) with menu & everything, I do all the test and I can confirm it. The PS3 can't player BDMV, and is not for incompatibility but it's a Sony decision. They can unlock this when the want, like Samsung. Samsung BD-P1000: first firmware plays BDMV. 1.1 & 1.2 don't play BDMV. And now the latest play BDMV. It's a politic reason. There is only a problem now: if you burn a dual layer BD you can't replicate the layer change info & the disc doesn't work fine, when you arrive @ latyer change the playback stops. |
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