If you’re looking for a multi-stream CableCARD, aka an M-Card, for your TiVo HD (and, really, what other major consumer product uses M-Card today?), then this is for you. Sound and Vision Magazine has written a great article which includes their ‘Official M-Card Guide‘.
It is worth a read. The author makes one (common) error though:
Cable Guy No. 2 came by. He removed the old CableCARD from my TiVo (which turned out to be a regular CableCARD â€” it didnâ€™t say â€œM-Cardâ€ on it) and popped in a real M-Card. He thought the M-Card had the ability for two-way interactivity, so I could order pay-per-view, on-demand, that kind of thing. I explained to him that two-way CableCARDs werenâ€™t on the market yet. He wouldnâ€™t believe me.
I used to be confused about this myself, so I really have to cut him some slack. All CableCARDs are ‘two-way’. I used to be confused because two-way functionality was generally lumped in as a ‘CableCARD 2.0′ feature, along with multi-stream. But that was incorrect. All cards, from day one, are two-way. What wasn’t finalized was the spec for hosts to support two-way. So the cards are two-way, but there haven’t been any two-way consumer devices available. Those are just appearing, as ‘Tru2Way’ devices – the system formerly known as OCAP.
I spotted this via EngadgetHD.