can a regular DVD player play HD-DVDs? - HotUKDeals
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can a regular DVD player play HD-DVDs?

nuabdi Avatar
8y, 5m agoPosted 8 years, 5 months ago
the hmv deal is very tempting: http://www.hotukdeals.com/item/200120/hd-dvd-hmv-price-cut-from-3-99

but i dont want to buy an HD DVD player yet :-p

any help will be appreciated..
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nuabdi Avatar
8y, 5m agoPosted 8 years, 5 months ago
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1 Like #1
Nope...

Only a HD-DVD Player can play HD Dvd's
1 Like #2
No, no it can't. Not at all. In the same way that a CD player can't play DVDs.
DVDs are higher density than CDs, so reading them requires finer lasers with shorter wavelengths. (Imagine an old record/LP - data is stored on them by making grooves in the record, going outwards in a spiral. If you made thinner grooves you could go around the record more times and so store more data, but you'd need a thinner needle to fit in the thinner grooves. Optical disks work in pretty much the same way, except the grooves are digital, and made and read with a laser).
Obviously CD players aren't equipped with lasers good enough to read DVDs because they're older technology, so they can't read DVDs. HD-DVD is further progress in the same direction - more data can be stored because there are more tracks on the disk (they're closer together, in a Higher Density, hence HD-DVD), so you need a shorter wavelength laser to be able to read them, which DVD players don't have. It just so happens that your standard laser with a longer wavelength appears red. Lasers with shorter wavelengths to read these new, higher density tracks happen to appear blue. Hence Blu-Ray, but yes, HD-DVD lasers are blue as well.
#3
thanks guys, its just that google gives mixed answer
some say it can; some say it cant

rep added :thumbsup:

sorry reddragon, i ve just run out rep, I will give tommorrow
1 Like #4
op is a tard
#5
bigbob909
op is a tard


lol!!!

http://www.roflcat.com/images/cats/tard.jpg
banned#6
bigbob909;2334321
op is a tard



lol
#7
Warning: t1mm is on another self righteous crusade!

http://www.prosoundweb.com/fun/Photofun/76-head_up_ass.jpg
#8
grex9101
Warning: t1mm is on another self righteous crusade!

http://www.prosoundweb.com/fun/Photofun/76-head_up_ass.jpg


another?
#9
I thought HD-DVD stood for High Definition and not Higher Density. :whistling:
#10
Oh jesus what kind of dumb question is that - are you also one of those people who think to go digital you need a new hd tv
#11
Jumpingphil
I thought HD-DVD stood for High Definition and not Higher Density. :whistling:


No, it stands for High Density, because that's what they are. The density is higher on these disks allowing you to store more data, that's how they work. They're not just for movies are they? So you're not necessarily storing High Definition video on them are you? It just so happens that High Definition video takes up more space, so you need a High Density disk to fit it all on. In theory you could put a High Definition video on a regular DVD, just there wouldn't be much space so you couldn't fit an entire movie on it.

In the same way it is often said that DVD stands for Digital Video Disk, when in fact it stands for Digital Versatile Disk (because after all, they are versatile - you can store many things on them, not just video).

Edit - looking it up, it seems that Toshiba did actually copyright HD-DVD as 'High Definition' DVDs, obviously so that they could market them alongside HDTV (that's High Definition TV, because the TVs aren't actually denser in any way), just as Sony copyrighted the name of their new media as 'Blu-Ray'. However, of course, both HD-DVD and Blu-Ray disks are High Density Digital Versatile Disks.
#12
HD-DVD = High-Definition Digital Versatile Disc

Wiki don't lie!
banned#13
I wish it could m8, but unfortunately it cant lol
#14
Ive never heard or seen hd dvd been called high density dvd. Always been high definition.
#15
nerner
HD-DVD = High-Definition Digital Versatile Disc

Wiki don't lie!


yer its definition not density
#16
it is definition not density.

Slept yet daniel?
#17
nerner
HD-DVD = High-Definition Digital Versatile Disc

Wiki don't lie!


deathtrap3000
Ive never heard or seen hd dvd been called high density dvd. Always been high definition.


dandoc2
yer its definition not density


t0mm
it is definition not density.

Slept yet daniel?



I was trying to explain to the OP why a regular DVD player can not play HD-DVDs in terms of the differences in technology, rather than the commercial names given to the technology. Both Blu-Ray and HD-DVD are types of High Density Digital Versatile Disk.

The high density part refers to the fact that more information is kept on the disk because more data is kept in the same amount of space - CDs, DVDs and HD-DVDs are all the same size, 12cm, but store 650-800mb, 4.36gb-8.5gb and 15-50gb respectively because as technology has advanced it's become possible to use shorter wavelength laser diodes to etch smaller pits onto the media surface to store data in. As there are more pits on the same surface area, the density of data stored increases (just like if there were more people living in the same area population density would increase). The wavelengths used are 780nm for CDs, 650nm for DVDs and 405nm for HD-DVD and Blu-Ray. In this way DVDs could have been referred to as High Density CDs, because the step up from CD to DVD is essentially the same as the step up from DVD to HD-DVD.

But how to market this technology? Well, Sony called their new, higher density disks Blu-Ray because lasers on the shorter wavelengths required to read the disks are blue instead of red (actually, they're technically violet) and also, I guess, because Blu-Ray sounds cool. And yes, Toshiba called theirs HD-DVD, which they've marketed as standing for High Definition DVD, because the main use for these disks is/will be video, just like with DVD, and bigger disks mean you can store High Definition video on them, and obviously you want consumers to think "HDTV, HDDVD, must buy!"

Look at Wikipedia again - next to the HD-DVD logo you'll see a little 'TM'. That's because 'High Definition DVD' is a trademark of Toshiba, just like Blu-Ray is Sony's trademarked name. Underneath that you'll see it's described as a 'High-density optical disc', and that's what I was saying - high density is the technology used, not the trademarked name, and that's why a regular DVD player can't play HD-DVDs - it's laser's wavelength is too wide to read the more densely packed data.

If you read articles about the new type of disks from before either Toshiba or Sony came up with these names you'll only see them referred to as High Density DVDs, because calling them High Definition would imply either that the disks are only used for high definition video (when they can obviously be used for standard definition video, games, Word documents, etc.) or that the disks themselves are somehow made out of lots of pixels. Because, of course, it's also possible to put High Definition video onto a regular 8.5gb DVD - you'd only get 2 hours instead of 8, wouldn't that technically make it a High Definition DVD? Because it has high definition content? But then a regular DVD player would be able to play it - it's only the difference in density, not definition of content, that prevents them from playing HD-DVDs.

http://www.gizmocafe.com/tv-video/hd-dvd.aspx
http://www.dvdburner.info/hd-dvd.html
#18
HD-DVD players might become cheaper than DVD players as they will be obselite, lol

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