About the suitability of current DVD technology for display on HDTVs, here’s a helpful visualization.
To compare that with the improvement of SVHS over VHS, SVHS is technically 60% sharper than VHS. (400 lines of resolution vs. 240.) For most practical purposes, though, it’s not quite that much better, since cable TV is delivered to our homes at 330 lines of resolution, so if you’re recording off the TV, you’re only going to get the benefit of something like 90 additional lines of resolution. Not a spectacular improvement, and (for most people) not enough of an incentive to spring for a pricier TV with S-Video or composite inputs that would support it. The improvement was so incremental that it never caught on, and good luck finding studio-released SVHS tapes.
SVHS is half again as detailed as VHS. Blu-ray and HD-DVD are five times more detailed than DVD. Beyond that, don’t expect the special features to be exactly the same. The specs for Blu-ray, at least, allow for some neat stuff that isn’t possible with DVDs. It’s designed to be networkable, which is a neat gimmick. It uses alpha channels for more than just subtitles, so commentaries can have full-motion video composited over the film and suchlike. Not to mention that you can fit nine hours of full resolution HDTV on a single disk – or 23 hours of NTSC-quality TV, if you want to bother.
Mr2001, I’m not terribly worried about being inconvenienced by DRM issues. I’m fairly confident that things will proceed according to precedent: Security measures will be a non-issue for people who just want to watch their licensed content, and will be circumvented by people who are determined to get around it. There’s been a lot of hand-wringing about the possibility of innocent consumers having their units disabled through “false positives” for piracy. I don’t see it happening, honestly. If it’s going to happen to one person, it’s going to happen to a thousand, and if it does, then it doesn’t work and will have to be reversed/abandoned. There’s no percentage in totally alienating your customers.
I’m pretty confident that I’m going to want to be able to record HDTV programming and be able to watch it any time I want, for as long as want, and I don’t see that changing any time. I’m also pretty sure that I’ll have some desire to back-up HD versions of movies, and can’t really imagine any anti-piracy features, no matter how sophisticated, are going to hold up for very long against the army of nerds that will be working 24/7 to defeat them.
Anyway, I’m sure by the time I’ve saved enough (and the price has come down) for me to start seriously considering buying an HDTV and a high-def player. When I got my first DVD player they were still impossible to make a decent copy from, but who cared? The improvement in the medium was enough that that seemed like a minor thing at the time, and the nerds worked it out anyway. Same thing here. Not really worried about it. Certainly not going to decide upfront to be content with a picture quality that pales in comparison to the new media (and is soon to become a legacy format) because the new guys aren’t leaving their pants down from the get-go.
The benefits in this case are so much greater, even if by some miracle it turns out to be a completely airtight uncrackable encryption, frankly I don’t care, so long as I can purchase and rent movies in ass-kicking high definition. I think that for the foreseeable future, at least, bandwidth limitation is the most effective foil against actual piracy. Who’s going to want to spend a week or more trying to download a twenty-five or fifty meg disc image? And if it’s re-encoded into a more digestible format, who cares, really? (I know who cares, but to my way of thinking, such a “copy” is so inadequate that it’s not a replacement for the actual product. I somtimes grab screeners of movies before they’re available, but if I have enough interest in a movie to take the time to download and burn a file that’s 1.4 or 3 gigs, you can bet your ass that I’m going to see it in the theatre or snatch up the DVD as soon as I have the opportunity to, so nobody loses anything by it.)