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Warner Backs Blu-Ray. End Times For HD-DVD?
An anonymous reader writes "The NY Times reports: In addition to Apple, Warner Brothers is now going to throw its weight behind the Blu-ray format for high-definition disks. Warner has been the only major studio to publish its movies in both Blu-ray and HD DVD formats. Today, the studio announced that from now on, it would only issue movies in Blu-ray.
Richard Greenfield, the media analyst with Pali Research, wrote that this marks the end of the format wars: "We expect HD DVD to 'die' a quick death.""
This thing of thinking one agreement will stop conflict has been done before.
There is one player left who will likely fight on, that being microsoft. They absolutely don't want blu ray to succeed, because that means they lose another round to Sony.
Should be fun seeing how they react.
If storage size was all I cared about I'd agree with you. The DRM in blu-ray is less consumer friendly then HD-DVD. Not to mention I'd rather just about anyone control a standard for us then Sony. If HD-DVD was enough to give me HD movies, and it appears it was, I was hoping it would win out. But sadly the shifting DRM was probably why blu-ray's more appealing for the movie studios.
If there's a silver lining here it's that I think winning this race is meaningless. I don't think blu-ray is the next DVD. Laserdisc maybe.
The consumers already descided. Blockbuster supported both then discovered that more people bought blue ray by a significant margin.
The previous articles putting the two in a dead heat could do so only by discounting the number of PlayStation 3 owners by not counting it as a player even though most of the time when I ask for blue ray player prices they just tell me to buy a PS 3 in case I ever want to play games. Without the PS3 the number of players is almost even with the PS3 the numbers are deep into Blue Ray's favour.
Why anyone thought that fudging the numbers was a good move is beyond me.
"Most people that have a good HDTV can tell a large difference in good HD content."
You mean, some people _think_ they can tell the difference (notably TV salesmen and people who've bought a HDTV).
Despite many agreeing with you, I cannot, because like so many things in consumer electronics, users are too often fooled into thinking they're assessing one thing when they're assessing another.
To begin, "good HD content" is already qualitative rather than quantitative. HDLite seems prevalent on DirecTV - please see http://www.stophdlite.com/ and http://en.wikipedia.org/wiki/HD_Lite (probably in that order). I'd consider it "good HD content" and appreciate it a lot compared to SD - but it's not highest quality HD, as might be found with the OTA ABC or CBS broadcasts. What we call HD Lite is more along the lines of what you get from good DV tape - which I'll admit might qualify as "good HD content" but isn't HD.
Next - and I'm going to contradict myself a little bit w.r.t. the above paragraph and I'm ok with that - comes native resolution of the TVs themselves. My DLP has a native res of 1280x720p. The sign at the store calls it a 1080i set - because it accepts and converts 1920x1080i to native (all HDTVs convert whatever to their native formats) - so you have to beware of marketing crap. I haven't looked at the latest models, but most plasmas sold to the date I'd checked last year were native of 1024x768, and LCDs are very often 1366(or so)x768 native res. On those models, you're not going to get 1-to-1 mapping of HD anything without processing inside the TV - so like it or not, further signal degradation occurs in the format changeover.
Next, not all HDTV inputs are created equally. See http://www.dbstalk.com/ if you're a satellite TV user (or want to check my references) and you'll see plenty of newbie posts answered by very qualified TV engineers telling that no, they're not crazy, for their set / brand / production run, the component inputs are noticably better than their HDMI inputs or no, they're not crazy, for the same reasons, the HDMI inputs are noticably better than the component inputs.
Next, tuners. I have 3 ATSC tuners in my house, until recently, two were hooked to the same DLP HDTV - and just switching between the two caused guests - drinking beer and watching the game - to exclaim, "WTF did you just do?!?!?" So, even though the source could be qualified as "good HD content" the differences in h/w quality was easily observable by people with no vested interests in oooohs and aaaaahs of HDTV ownership.
Next, cabling. Yes, yes, yes, anyone paying too much for cables is an idiot. Try it. 'Nuff said. Now add in store cabling (have you ever worked in a consumer electronics store?) and you'll know all bets are off for controlling that part of your experiment.
Next, as you point out, color engines. Two HDTVs with same native resolutions? The one with the better color engine wins everytime - in fact, it's often been shown that given the choice between higher native res and color engine, spend the money on the better engine. My Helio Ocean phone with its 2 megapixel camera looking like crap (knew it before I bought it, didn't care) is an excellent proof point on this.
Next, SD upconverters built in to HDTVs all vary - and there are some very scary good ones. Ditto on set-top boxes.
Finally - the source material itself. Hitchhiker's Guide on HD (Lite) is better than on DVD - it's slight, but not subtle. I switched between the two without telling my wife what the switch was (to see if it was just my bias, as you suggest), and got one of those, "WTF did you just do?" moments again. Take something that really cared about HD during production and it's just no contest.
So - there's a lot more to HD comparisons and good HD content and what to invest in the HDTV world than just what
Pathological kinda promises Path + Logical - but instead, you get stuck with pathetic.
Graphics Processing Units (GPUs) are very good at doing repetitive fp and fixed-point operations, and much less good a bit-twiddling. I.e. the motion compensation stage of video decoding, where you copy (possibly sub-pixel-located) source blocks into the target frame has been handled by graphics hw since the very first sw DVD players, like Zoran's SoftDVD which was the first.
(In fact, SoftDVD was capable of handling 30 fps even without hw assists, running on a PentiumMMX 300 Mhz cpu, and without dropping any frames, but having the motion comp hw made it much easier to avoid drops. BTW, I did a very small bit of asm optimization work on that sw player.)
High bitrate HD/BR video is encoded using the CABAC (Content-Adaptive Binary Arithmetic Coding) algorithm, which provides slightly better compression rates, but which is also particularly unsuited to a GPU: Each decoding step requires multiple if/then/else stages, just to decode a single bit of information. It is also completely serial, in that you normally cannot determine the context to use for the next decoded bit until you've finished the current bit and possibly even branched on the result!
When you need to do this more than 50 million times/second, CABAC becomes the real bottleneck.
OK?
Terje
"almost all programming can be viewed as an exercise in caching"