What retail drives do not work with the TiVo?
Based on member reports, the My Book Home Edition (320GB – 1TB) eSATA drive is incompatible with the TiVo and cannot be used. The bridge chip built into that product’s enclosure is believed to be responsible for the incompatibility, because if you remove the bare drive from the enclosure and install it in another, it will work. Most revisions of the WD10EACS, WD10EADS, and the retail WD “Green” drives will not work as internal drive upgrades for the TiVo Series3. They will work in the newer TivoHD model, and they will work when installed in an eSATA enclosure for Series3. For 1TB upgrades, Series3 owners should stick to the WD10EVCS, WD10EVVS, ST31000322CS, ST31000424CS, or ST31000533CS. Some other retail eSATA drives include eSATA cables that do not work reliably with the TiVo, but that is typically fixed by adding a cable from FAQ #26.