Quarkboy
20th February 2008, 22:33
Okay, here's a serious technical question, that I'm not sure an answer even exists.
I have a Toshiba Regza Z2000 television, with an IO-data 300 GB hard drive attached to it to use the special HD-recording feature of the TV.
The tv will basically record the broadcast mpeg transport streams to this hard drive, and I can easily attach the drive (it's networked) to my home network and look at the files on it.
Basically you get collections of 3 files, a .dtv, and .dtv.meta and a .dtv.rat
The .dtv.meta seems to contain data about the broadcast, the .dtv file is the large one that I think is encrypted somehow (the B-CAS encryption, perhaps?), and the .dtv.rat file is probably the key.
I can playback the shows on my regza but I'd like to decrypt the files to give myself perfect mpeg-ts streams to work with....
Unfortunately search as a may I cannot find any information about how to go about this. Does anyone have any clue?
I have a valid B-CAS card in my TV, but...
I have a Toshiba Regza Z2000 television, with an IO-data 300 GB hard drive attached to it to use the special HD-recording feature of the TV.
The tv will basically record the broadcast mpeg transport streams to this hard drive, and I can easily attach the drive (it's networked) to my home network and look at the files on it.
Basically you get collections of 3 files, a .dtv, and .dtv.meta and a .dtv.rat
The .dtv.meta seems to contain data about the broadcast, the .dtv file is the large one that I think is encrypted somehow (the B-CAS encryption, perhaps?), and the .dtv.rat file is probably the key.
I can playback the shows on my regza but I'd like to decrypt the files to give myself perfect mpeg-ts streams to work with....
Unfortunately search as a may I cannot find any information about how to go about this. Does anyone have any clue?
I have a valid B-CAS card in my TV, but...