It is still useful as an SD DVR and has a much larger hard drive than the 510. There is also the availability of the NTSC/ATSC tuner that make it attractive to some.Anyone here should know that is only worth its spare parts right now.
I guess you're right on that mark. I was still thinking of it as a HD DVR. But as a SD DVR it would be pretty good. Heck you even get PIP. I liked the Ch0 input on my old 921. I hooked up a baby monitor camera. Whenever they kid cried, I could change channels and see what he was up to.It is still useful as an SD DVR and has a much larger hard drive than the 510. There is also the availability of the NTSC/ATSC tuner that make it attractive to some.