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We all know that HD-DVD has given up the
battle for the next generation movie media, and that Blu-ray has been
declared the winner. This is all fine and dandy, but that was so last
year, and as a tech guru, I want to know what is next. It’s the nature
of technology to be in development before the current market adapts to
the next high end gear.
Now that we've finished with
the HD-DVD vs. Blu-ray battle, it's time to move on to what
might replace Blu-ray. We will take a look at what is up next for the
video viewing audience. Just as there were multiple formats fighting
for the current "next generation" format, there are a few different
formats that look poised to become the next favored media format when
Blu-Ray kicks the bucket. Some are brand new high technologies that are
mind boggling, and some are in use today, but haven't caught on yet.
Holographic Versatile Disc
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No, we aren't talking about
something out of Star Trek; this is real holography. This new
technology could hold up to 3.9 TB per disk. To put that into
perspective, you could fit the entire Library of Congress onto six of
these disks. At the current video resolution, that is about a year of
play back on a single disk. Sounds really interesting, doesn't it? I'm
sure we will see the resolution bump up to at least double if
not even more.
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Traditional film is roughly 3000 to 4000
lines, which compared to the current 1080i is three to four times
as big. If you're thinking of audio, this is more than 48 80 GB iPods
in one disk. To go from 50 GB on a disc, which is what Blu-ray is
capable of, all the way to 3.9 TB requires some technology we have yet
to see.
This will work similar to previous
generations of optical media. Instead of having a single laser to read
the data, with HVD, there is a green laser and a red laser that work
together. The red laser is first and is used to help lead the green
laser. The interesting aspect is that the disc is designed so that the
top layer is read by the green laser, where the data is stored, while
the red laser passes through the first layer onto the second
later, and both are then reflected back up to the laser reader, which
translates the disc into usable data.
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The way the data is stored on
the media is more 3D than anything we have seen today. The best example
of how this will work is using a desk of cards. In any media available
today, it is similar to putting cards side by side. The closer they are
together, the more cards fit on the surface. This is where the idea of
Blu-ray comes from; the blue laser allows the cards to be placed closer
together without overlapping. The lasers will read the position with
respect to the X and Y axis.
HVD does something a little different with the cards. Take a deck of
cards, and push them over so that they overlap. This takes up a lot
less area than putting them side by side. The HVD has the traditional X
and Y coordinate readers. Since the cards are overlapped, a traditional
X Y reader wouldn't be able to distinguish the different packets of
data. This is where the two-laser requirement comes in. With the
two-laser approach, the data can now be read on the Z axis as well,
making every card in the desk readable. This is the main reason we
can store so much data on the same size media.
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At the same time as HVD is
being developed, another device utilizing this technology is in the
works. Instead of having the traditional discs as we have come to know,
they are also working on cards. As far as the laser aspect of HVD, this
should be similar to the Holographic Versatile Cards (HVC). The biggest
benefit of the card over the disc is that the card won't have moving
parts, which cuts down on problems faced with current optical
devices. These won't be able to hold as much information, only around
30 GB per card.
As far as next generation
media, I don't think this will cut it. Currently Blu-ray discs can hold
more data than this. I think that this may take off in the business
sector though. The ability to store an entire computer hard drive's
worth of data would be amazing. You could carry all your data around
with you, even your OS, and also have all your programs and
configurations available on any computer you choose to use. An HVC
would also posses any data or access codes one would need for
identification. You could have a ID tag along with your PC hard drive
in a single card.
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If you think that the price might be
a problem, think again. The cards should be around $1 at launch, and we
all know how the price falls on media after launch. Okay, price isn't
an issue, but will size be an issue? These cards will be the size
of a credit card, the same size as many of our ID cards.
Tapestry Media
Tapestry media will work in a way
that is similar to the other technology I discussed. Instead of
having two lasers, this will only have one, but it will be split into
two different beams. Where these two beams cross is where the data will
be written and also read. Due to the difference in laser designs
between the two technologies, the amount of space each disc could hold
is different. Tapestry media can only hold a theoretical
maximum of around 1.6 TB, about half of what HVD is capable, but still
a lot bigger than anything we have available today. This doesn't look
to be as promising of a technical format as HVD, but anything can
happen.
SD-Cards
This schould be a goog alternatief to a
disc. Strictly speaking SD cards are upto 2GB capacity. To support ever
increasing demand for memory capacity a new standard SDHC (Secure
Digital High Capacity, SD 2.0) was introduced which enabled capacities
above 2GB. These cards are called SDHC and are available upto 32GB
capacity. But SDHC cards are not compatible with older devices which
support only SD card standard devices. Devices which support SDHC due
to backward compatibility support smaller capacity (less than 2GB) SD
cards also. In summary SDHC cards only work in SDHC compatible devices,
but standard SD cards work in both SD and SDHC devices. Right now the
biggest SD cards are 16GB, they're always getting bigger
though. But Toshiba is already offering a 64GB SD memory
card. If the technologie keeps developing than it can be the next
best thing in the movie scene.
Flash Drives
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I have read that some people might
be interested in seeing movies move to USB flash drives. This is even
possible right now, but compared to what the movie looks like on
Blu-ray, we are far from that. Current HD movies can take around 50 GB,
and the next generation will need to be bigger then this.
Seeing as how HVD can hold 3.9 TB,
we would probably need, say, 4 TB of storage on a USB drive before this
becomes an option. Currently we have 1 TB drives that are normal-sized
hard drives, so technology is really going to need a push to get it to
the 4 GB level.
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Downloadable Content
This technology is available right
now. The ability to download videos straight to your PC or media
center will be great, but are we ready? Currently I don't think enough
people have the hardware to run the media center that this would
require.
The movies will be roughly 4 TB for the
next generation, so not only are we going to need massive space for
storing movies, but also a solid connection to the Internet, with
speeds probably only reached in science labs now. I doubt the
technology will be there when Blu-ray is on its last legs. I do think
the general move is toward downloadable content, but we are a few
generations off from this being the norm.
Conclusion
While more people are just now getting to
understand what the heck Blu-ray is, we are looking to see what is
next. Sure it is probably quite a ways off, but as tech gurus we are
never satisfied with the current technology. The HD-DVD vs. Blu-ray war
has just finished, and the next round is already in the making.
The war is still open to new and
unmentioned technologies as well as the ones included here. The ones
mentioned here are some of the front runners I feel have a good chance
at winning the next media wars. My favorite so far has to be HVD.
It offers the largest amount of space and the credit card
sized versions will give it an additional push to the market.
I think downloadable media will also gain
in popularity as well. I'm not going to bet that it will become the
dominant means of buying videos, but it may draw a noticeable market
share.
So how much is my opinion worth? Well I'm
definitely someone that keeps up with the rapidly changing technology,
but I was a huge HD-DVD fan until the end. Sadly it didn't
win. I'm 0 for 1 so far for predictions, so perhaps this round
will be different.
Thanks for stopping by and reading my
article on what is next after Blu-ray. If it turns out to be anything
like the last fight, there will be plenty more news coming out of
DevHardware about these new technologies and the next generation war.
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