can we not buy bigger dvd's?

[hispanicboy]

just curious, if people (movie companies) can burn dvd's that are 6,7,&8 gig, how come we as consumers cn not buy blank ones?
and if we can. where would one do so?

[tumbar]

You can, but you can't write dual layer!

The dvd's the distributors use are "pressed" dual layer.

The ones we use are recorded single layer.

The two processes are different.

You can buy a double sided dvd, but why spend the extra money, just use 2 dvd's.

[tonyp12]

The big guys do NOT BURN them.

They press them in a machine, and they "stack two thin ones" on top of each other to create one 2-layer DVD.
(The two layers are stamped at the same time, during the injection molding)

With Laser burning, it would be very hard to write to the second layer
without changing the first layer too.

So you will not see two layer DVDR burners anytime soon (if ever)

[hispanicboy]

oh ok, thanks. can i buy a dvd "presser"?

[tonyp12]

oh ok, thanks. can i buy a dvd "presser"?

Sure, do you have $10'000 ???

Not really sure what they cost, could be even more.

Contact a CD/DVD author company and ask how much
they charge for a small run. (1000 is probably a minimum)

http://superduperdisc.com/business/dvdreplication.asp

http://www.cdman.com/store/dvd.html/?source=overture

for DVD-5: http://www.dubmax.com/dvd_replication/index.html

[hispanicboy]

i'll check on e-bay

[jkl]

oh ok, thanks. can i buy a dvd "presser"?

LOL
let's just say it'll would probally be cheaper(if not suprisingly close) to call amazon and tell them to send you one of every dvd they have. i'm sure you'll get a generous discount.

since they are not publically sold, we can only speculate at the price.

how much would a dvd burner cost if it could make 1 dvd as fast as you could load a new one into it?

how much would a machine cost that can take a movie on tape and etch it into a multi-use steel plate used for the pressing process(btw tonyp12 they press it in one go on a single, not two stacked, disk, although, like coins, may be pressed twice or more for quality control.)?

now mutiply the above by at lest 12 across, connect into one huge machine. and be able to make about 48 dvd's per second. i'm sure they are bigger and faster than this.

[donalo]

This could all be academic with blue laser dvd technology just around the corner with the promise of 40 gigabytes per dvd and backwards compatibility!

[kitty]

Backwards compatability - who sold you that bridge? The new discs use blue lasers and the current discs may be read in new players but the current players will never play the newer high capacity discs.

[jkl]

drives that can "read" bluelaser will not be available at least at the end of 2003 and then only after settop dvd players capable of reading bluelaser is on the market. bluelaser "writers are not expected no earlier than 2005 and may be introduced at a price of 1600$(toshiba) to about 2100$(sony). the first market to the new tech will be corporations as a compact data storage media. just search google or browse toshiba's and sony's news sites.

[tonyp12]

This website gives you an idea what a DVD-5 & DVD-9 is about:
http://www.datastorage.unaxis.com/en/os20_dvd.htm

or here:
http://www.nimbus.ltd.uk/nte/format/dvd.html

[House de Kris]

Backwards compatability - who sold you that bridge? The new discs use blue lasers and the current discs may be read in new players but the current players will never play the newer high capacity discs.

If a new player plays old discs, this is called backward compatible.
If an old player plays new discs, this is called forward compatible.

No one is promising forward compatibility. But, BlueRay should be backward compatible.