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I can't cite my source but it was linked from macrumors. Basicly it has incrementally better audio treatment (allegedly) and a slightly different video treatment, which I am SURE a human could not detect the difference between.

Rocketman

Interesting, but totally off-base. Blu-ray suppports fully uncompressed audio. Additionally, the higher bitrates overall imparted by the better laser allow for higher quality data streams of all types.
 
The kicker there though is that hard drives are going to hit a floor price soon, where production/material costs no longer allow for the price per Gb to reduce. The promissing tech there being perpendicular drives, though the $ premium on that technology is a bit more than it should be.

That was only because it was new for the time. The newest product always commands a premium, as it ages, the premium wears off. For example, the current price/GB of the 750GB drives are about the same or only slightly higher than that of a 400GB drive, probably lower if you factor in the cost of a drive enclosure or drive bay into the per-GB costs.

Assuming you could make a flash drive that size, that drive would cost $15,000, using Sandisk's currently stated pricing. I can see using SSD if it's 2x that of a hard drive, that's cheaper than a mirror pair, but not 50x, and it's going to take several years to get down to that price differential.
 
It's just that most of the technical papers I have seen say that using Blue laser with a much shorter wavelength of light than a ruby laser ultimately allows much denser data storage on disk with faster read/write times.

HD-DVD and Blu-Ray both use the same color laser. HD-DVD was going to use a red laser of some type but that was changed.

There are a few niggling details here and there, HD-DVD requires dual video stream decoders and has some other features. One I remember is that HD-DVD allows you to "reskin" objects if the movie supports reskinning, so your favorite car has a certain logo replaced or your least favorite actor has a face replacement.

I'm rooting for BRD only because I want better computer storage options, but I don't expect to buy into an HD disc format it until the dust has settled and one format bows out.
 
Interesting, but totally off-base. Blu-ray suppports fully uncompressed audio. Additionally, the higher bitrates overall imparted by the better laser allow for higher quality data streams of all types.

uncompressed audio is fine when you have the space but what you ask for is diametrically opposed to good video. If I want the best video then I want to be efficient with my audio. TrueHD is lossless but utilizes a lower bitrate thus I have more room for the video and its peaks. To date there is little correlation between higher bitrates and better quality. It seems that the primary differentiator for quality encodes is the quality of the Master.
 
Blu-Ray IS the more advanced technology. The only leg HD-DVD has to stand on is lower production cost.

How do you figure? The only advantage I can see with Blu-ray is bandwidth.

Blu-rays maximum video bandwidth is 40Mbps while HD DVD's is 30mbps.

From a platform spec the HD DVD players are more full featured with far more mandatory features despite the lower cost.
 
HD-DVD and Blu-Ray both use the same color laser. HD-DVD was going to use a red laser of some type but that was changed.

There are a few niggling details here and there, HD-DVD requires dual video stream decoders and has some other features. One I remember is that HD-DVD allows you to "reskin" objects if the movie supports reskinning, so your favorite car has a certain logo replaced or your least favorite actor has a face replacement.

I'm rooting for BRD only because I want better computer storage options, but I don't expect to buy into an HD disc format it until the dust has settled and one format bows out.

Downloads and ZFS are going to make discs irrelevent except for very long term storage of personal data.

At some point you will not even download the movie, only a permission file to view it anywhere, anytime on any device.

Rocketman
 
How do you figure? The only advantage I can see with Blu-ray is bandwidth.

Blu-rays maximum video bandwidth is 40Mbps while HD DVD's is 30mbps.

From a platform spec the HD DVD players are more full featured with far more mandatory features despite the lower cost.

Dont forget much higher capacities, which is no small thing (pun intended).
 
HD DVD leads there. They have access to double sided DL30 discs for 60GB of total storage on a disc.

Wrong again. From the spec site:

To ensure that the Blu-ray Disc format is easily extendable (future-proof) it also includes support for multi-layer discs, which should allow the storage capacity to be increased to 100GB-200GB (25GB per layer) in the future simply by adding more layers to the discs.

Also:

According to the Blu-ray Disc specification, 1x speed is defined as 36Mbps. However, as BD-ROM movies will require a 54Mbps data transfer rate the minimum speed we're expecting to see is 2x (72Mbps). Blu-ray also has the potential for much higher speeds, as a result of the larger numerical aperture (NA) adopted by Blu-ray Disc. The large NA value effectively means that Blu-ray will require less recording power and lower disc rotation speed than DVD and HD-DVD to achieve the same data transfer rate. While the media itself limited the recording speed in the past, the only limiting factor for Blu-ray is the capacity of the hardware. If we assume a maximum disc rotation speed of 10,000 RPM, then 12x at the outer diameter should be possible (about 400Mbps). This is why the Blu-ray Disc Association (BDA) already has plans to raise the speed to 8x (288Mbps) or more in the future.
 
HD-DVD and Blu-Ray both use the same color laser. HD-DVD was going to use a red laser of some type but that was changed.
.

I see that you are right. They both now use the 405 nanometer wavelength laser. So really I guess these two devices are essentially on equal footing with the laser now the principle difference is the format spec itself.

It looks as though BRD wins as far as storage 25GB per layer as opposed to 15GB per layer for HD-DVD but HD-DVD specifies 60i fps support whereas it is optional on BRD.
 

Not part of today's spec. Those discs record 33GB per layer which is incompatible with today's Blu-ray player which stores 25GB per layer.

Sunrunner said:
Wrong again. From the spec site:

"should allow"?? That's speculation. I've got the Blu-ray specs in PDF form on my Mac. The current spec doesn't support anything higher than DL50GB discs. I'm into what can actually be delivered versus pipe dreams about what the future may hold. DS DL30GB discs are supported in the spec of HD DVD TODAY.

http://en.wikipedia.org/wiki/Blu-ray#Blu-ray_Disc_.2F_HD_DVD_comparison
 
Not part of today's spec. Those discs record 33GB per layer which is incompatible with today's Blu-ray player which stores 25GB per layer.



"should allow"?? That's speculation. I've got the Blu-ray specs in PDF form on my Mac. The current spec doesn't support anything higher than DL50GB discs. I'm into what can actually be delivered versus pipe dreams about what the future may hold. DS DL30GB discs are supported in the spec of HD DVD TODAY.

http://en.wikipedia.org/wiki/Blu-ray#Blu-ray_Disc_.2F_HD_DVD_comparison


Its like ZIOXIDE said: TDK has a prototype 200GB Blu-ray disk.

http://news.zdnet.co.uk/hardware/0,1...9282192,00.htm

...and the spec requires that current drives support the multiple layers already.
 
Its like ZIOXIDE said: TDK has a prototype 200GB Blu-ray disk.

http://news.zdnet.co.uk/hardware/0,1...9282192,00.htm

...and the spec requires that current drives support the multiple layers already.

Yeah and someone has a prototype car that runs on water. How's that going to help me now? If you want to live in the future then Blu-ray's your format but for folks that need to get stuff done today we need concrete deliverables.

If you think multi-layer BD-ROM is easy find me a replicator that can handle consumer projects. Hint..there are none. So dreams about 200GB discs that aren't even in today's spec are foolhardy if you can't even go to someone like discmakers or ProAction and replicate DL BD ROM.

http://www.proactionmedia.com/hd_dvd_replication.htm
100,000 Discs $1.35 ea(15GB) $1.55 ea(30GB)

http://www.proactionmedia.com/blu-ray_replication.htm
100,000 Discs $1.49 ea (25GB)

speaks volumes doesn't it?
 
Yeah and someone has a prototype car that runs on water. How's that going to help me now? If you want to live in the future then Blu-ray's your format but for folks that need to get stuff done today we need concrete deliverables.

If you think multi-layer BD-ROM is easy find me a replicator that can handle consumer projects. Hint..there are none. So dreams about 200GB discs that aren't even in today's spec are foolhardy if you can't even go to someone like discmakers or ProAction and replicate DL BD ROM.

http://www.proactionmedia.com/hd_dvd_replication.htm
100,000 Discs $1.35 ea(15GB) $1.55 ea(30GB)

http://www.proactionmedia.com/blu-ray_replication.htm
100,000 Discs $1.49 ea (25GB)

speaks volumes doesn't it?

What hardware are you currently using , and how many HD disks do you burn a day ?
 
Of course DL30 is listed and to access the other 30GB portion you simply flip the disc.

Well if you're talking about flipping the disk, than if Blu-ray wanted to, they could make 100GB ones compatible to today's specs.

According to the wikipedia article, blu-ray is superior in every way.
 
Well if you're not using any HD creation AND HD burning tools now your arguments about other's looking in the future are just as speculative as theirs.;)

Oh I see. I'm stuck with iMovie until I can scrounge up the pennies for the next version of Final Cut Studio. I find that Blu-ray is a fine format..expecially as a recording format but I'm not so keen on it as far as a playback medium. I don't really like the extra BD+ DRM and Java based interactivity to me seem backwards.

Sunrunner said:
Flip the disc??!!?? What is this, 1995?

LOL yeah it is but technically speaking it allows for the most density on a single disc. My preferences would of course be for a single sided disc.

I'll likely own both formats but for movie buying I'm a HD DVD fan because of value. The cost is lower and the quality is all there. I don't have many qualms with others preferring Blu-ray. Who knows where things will take us...all I know is that Apple will be there to support HD wherever we go.
 
Well if you're talking about flipping the disk, than if Blu-ray wanted to, they could make 100GB ones compatible to today's specs.

According to the wikipedia article, blu-ray is superior in every way.

Yes but that would be quite difficult. Since Blu-ray isn't two .6mm halves sandwiched together like DVD/HD DVD.

They would have to have 3 pieces. Two .1mm protection layers and a 1mm backing. Both sides would have to be coated with protective film. That would be a mighty expensive disc to manufacture. But theoretically it could be done.
 
Speaking of CODECS

When is Apple going to support the next Hotness in compression.

Wavelet Compression

CRC-WVC

http://www.videsignline.com/howto/196602553

avelet-based video coding has recently received much attention and emerged as a powerful competitor against the traditional hybrid coding scheme. Many experimental results have shown that wavelet-based video coding is able to provide higher compression efficiency than the traditional hybrid coding. In addition, wavelet-based video coding has another advantage. Once a video is encoded at a given resolution and quality, video with various lower resolutions and qualities can be easily decoded using portions of the bit streams. This feature, called scalability, enables delivery of video over heterogeneous networks and to serve clients with various display and processing capabilities.

In this article we will describe the structure and algorithms of a wavelet-based video codec called CRC-WVC. Then we will present the compression efficiency of the codec and explain the reasons why it can perform better than H.264.

Sounds interesting. h.264 is pretty powerful but if this product in it's infancy can be competitive then who knows what power it may contain. I say FCP 7 needs to add some sort of Wavelet Compression. The less data we can send over WAN links yet still keep quality the better. IMO of course
 
as much as we would all love to get our new OS, Mac Pros, iMacs and so on, just based on the colors and layout-i think it will be most likely new Pro apps

I personally do not think that we will see Lepoard untill WWDC-thats just me
 
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