Seems like cost of blu ray media & increased speed of blu ray recorders vs cost per gb of a set of 2tb+ hard drives is making blu ray more attractive. At least, to me, so far. Rough calculations: say $120 x 2 = $240 for 1TB backed up = 100 hd movies. 100 hd movies on blu ray = $100 or possibly $50 if want to put 2 movies on 1 disc (which I probably wouldn't do). Still $240 vs $100. Personally I'm wary of running a large array of hard drives on some sort of server. Expensive, not green and subject to failures. I understand raid, etc, but it's about the cost and maintenance of all that vs $1 for a blank blu ray to carry 1 or maybe 2 tivo hd movies. Of course there is the hassle of burning blu rays. I suppose if cost were no object and I didn't feel guilty about all that electricity I'd go with some enormous and costly raid solution. Any opinions?