Quote:
Originally Posted by the-cable-guy
Losttheplot was saying that you can change the CAM using software updates & the like, which while its possible you cant go messing with things like that even if you are a company cuz you'd get sued & in oder for us to use both Videoguard & Nagravision (as Losttheplot was suggesting) we would need two CAMs. also i wouldnt of written what i had about how cable tv works if i hadnt checked up on it first (although i already knew about it before hand). as iv already said im not being funny but some ppl on here dont like to admit when their wrong even when you give them the facts/proof.
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I think you need to read a little more carefully.
I said you can change the software on the embedded CAM, its part of the STB, you can change the software on the box and hence the embedded CAM. Who would sue you? Its Virgins STB, they own the box and have licensed any bits and pieces within it. In short they can do what they want. As far as needing two CAM's, I never said it. Virgin can simulcrypt, so that two encryption methods are being used, the software on the box would be changed to that required for the new CA system (more than likely Nagra again) and a new smartcard issued for the new CA, all done with the single CAM within the STB. I've also never said they would use Videoguard.
You haven't posted anything of your own about how cable TV works, you posted an american article mainly based on how analogue cable TV works in america. In the UK we have different channel bandwidths so alot of what was posted isn't relevant. America uses ATSC for its digital, we use DVB. Unfortunately with a name like 'the-cable-guy' people are going to assume you know what you are talking about and are in the cable industry, are you?
I worked for 7 years on digital cable. I've also worked on various digital TV systems around Europe, on CA, Multiplexing and Encoding - MPEG2/H.264 SD and HD.
When NDS changed Sky's encryption I handled the upgrade of the 70 or so Professional receivers in one of the Super Headends. New software was required on the professional recievers in the headends and on the domestic Sky boxes in peoples homes to handle the new CA, Sky then sent out all the new CA smartcards. Sky did it, Virgin will do it a similar way.