Only thing I like about blu-rays is the larger quantity available for saving data. Sometimes I like to burn discs, so blu-rays would become handy for me, once I get a blu-ray burner on a computer, for saving a lot of data I have stored on the computer, probably mostly just my mvs and videos. However, as I said, I seriously doubt they'll come out with a disc past blu-ray because I cannot imagine how much more space they could give and what quality they could offer. Even with blu-ray, I question the high quality thing. Is it really that much better than DVD? And with all that extra space, what the heck could they add to official blu-rays to fill up that space that hasn't already been done?
I'll likely stick to DVDs, using blu-rays for data backing only, and only if I can get a blu-ray player/burner (which likely will never happen).
I think I have a DVR, but I'm not entirely sure. We have digital cable and the remote does offer a recording option, but I don't even know how it works. But when it comes to DVR or DVD/Blu-ray, I'd have to go with DVD mainly because you can finalize them and prevent the data from being removed (not counting scratching, breaking, etc), while on DVR, I can't help but think that anyone can remove any of it at any time, and since I do not live alone, this is my main concern.
My aunt has Comcast, but she says it's horrible, raising their price all the time. We use Blue Ridge, which, according to my aunt, is better than Comcast.