Originally Posted by Sundance
The Moxi needs a multi-stream cable card. I talked to local comcast and they have a "dual cable card", is that the same thing?
Yes. M-CARDs are the only CableCards still in widespread use. All other cards were discontinued ~15 months ago.
At this point, you won't see the older single-stream CableCards (S-CARDs) anywhere unless one was just returned by a customer.
Originally Posted by fallingwater
Unfortunately the other aspect of TiVo's transfer system, copy-protection, IS a significant problem, depending on a viewer's cable co. Here, Comcast apparently copy protects all premium channels, making MRV useless.
(Please correct me if I'm wrong but) I assume TiVo's file-transfer system isn't sophisticated enough to interact with Comcast's copy protection flagging to disable transfers only between two TiVo's which don't both employ CableCARDS? I've got one S3 with CC's and the other without. There'd be some logic in restricting such transfers (from Comcast's POV), but is that why TiVo's MRV doesn't work for me on premium channels?
Cable providers can flag cable channels as "copy freely" or "copy one generation" (no further copies after DVR copy). Most Comcast cable channels are flagged as "copy freely," so there are no restrictions on the ability to transfer recordings from those channels. In contrast, premium movie channels (HBO, Showtime, etc) are almost always flagged as "copy one generation" which prohibits those recordings from being copied to another DVR; it also prohibits downloads to a computer. These aren't TiVo's requirements; these are CableLabs' requirements, which every manufacturer must agree to before they can sell a CableCard product.
Streaming is permitted for such copy protected programs so long as (a) an authorized encryption system is used and (b) no portion of the program is saved. DTCP-IP is one authorized encryption system, and that is what Moxi will use to stream all recordings.
Of course, it is always possible --although unlikely, imo
-- that TiVo will add streaming MRV with DTCP-IP at around the same time that Moxi adds that feature. At the moment, all we can do is compare the TiVo's older MRV implementation to Moxi's non-existent (but promised) implementation.