Atvtg writes "Ars Technica has an excellent article on CableCARD, and where it's heading. After discussing the history of the initiative and some of the technical details, they cover how CableCARD may meet its end shortly after the launch of 2.0 (the bi-directional spec) because of DCAS. The real surprise, however, is that CableLabs, which controls the CableCARD spec, has to certify computers to use CableCARDs for DVRs and the like. Ars points out that the upshot of this is that it will not be possible to build your own DVRs using CableCARDs. Will this kill the DIY market?"