Single Sided 9.4GB Disks:)

[caprioles9000]

Hmm...i wonder whether they will come up with this yet for the consumers ....it would make some certain things much easier for us:)))HEHEHEH..

[iwod]

I think you will never see them, there are double side 9.4Gb, but single side DVD 9.4Gb will need two layer, and i think current DVD R and not capable of doing so.

[caprioles9000]

hmmm...:( ...so when you are using ...the doubble sided you have to turn the otherside of the disk if you have burned a movie on to it right!!! Thats kinda irritating if you are watching a movie ..and it stops because you have to switch to the other side:( ...not really user friendly!!

[mpucoder]

There's always the blue laser. Now, if you're wondering what I'm talking about, almost a year ago Fujitsu announced the feasibility of a 80G blue laser DVD-R. I haven't heard anything about that since, but the industry has been working on a 27G blue laser disk for commercial use, and drew up the specs last February, see http://www.dvdking.com/dvdstore/article.asp?article%5Fid=329
It only follows that a writeable/rewritable format for computers wouldn't be far behind the use of that. But (there's always a but) the DVD Forum, just days after the spec was formalized, rejected the idea of using it. http://www.dvdtown.com/news/news.asp?news_id=2719&id=
They claim it would be too expensive, since current players would not be able to play the new disks.
The question remains, then, since it is technically feasible, will it see the market without the support of the DVD Forum, or the backing of MPAA?

In any case. blue laser, or double layer, your current recorder would not be able to use them.

[caprioles9000]

ww000ttt..thnx for the info mpucoder ...this is great to know:)...i do hope that the version of blue laser for computers and consumers will follow :))

[jggimi]

On a dual-layer disc, the two layers are literally pressed together during manufacturing. A dual layer disc must be manufactured, it cannot be burned. (As of current technology in manufacture and in burning.)

[iwod]

So far, blue laser will only come out in product as early as 2004. And the first product using them will be consumer DVR ( replace of VHS ). It is still uncertain wheater they will allow PC user to use it.

On a brighter side twainess manufacture has invented a technology that allow current DVDs to reach up to 100Gb of capacity. And the product is aiming at PC users. But that won't be coming till 2005 at the earliest.

[Deepa DvD]

hmmm. current dvd's 100gb? ....interesting.;)
I wonder how they'll use that in commercial dvd releases...

[ulfschack]

On a dual-layer disc, the two layers are literally pressed together during manufacturing. A dual layer disc must be manufactured, it cannot be burned. (As of current technology in manufacture and in burning.)

Now why's this, you think?

I've heard similar claims of certainty and despair elsewhere as well, but why the hell shouldn't a "burning" laser be able to focus on two depths when a "reading" one obviously can?

Please expand.

cheers

[jggimi]

http://www.cd-info.com/CDIC/Technology/DVD/dvd.html


You, too, can search the internet with keywords. I know you can.

[ulfschack]

Interesting (old) reading ... not one iota of what I asked is explained in the article.

As for searching, I've done my fair share, but none that has lead me to anything but unsupported claims saying something like "The layers are glued together, therefore double layered DVD-Rs will never reach consumer level."

Considering later years technical landwinnings few people will argue that somehow DVD-Rs are exempt from such future accomplishments. In other words; what a crock o bull. Show me something worthwhile.

PS congratz on your next (fivehundreths!) post :)

cheers

[mpucoder]

I can't quote sources (not because I'm not allowed, I just forgot who they were), but I have heard of people working on just that - a dual layer writeable DVD. Could just be rumors, but...
And, yes, the current mass produced dual layers are seperately stamped then laminated together. But that does not rule out any other means of making an optically equivalent disk.

[ulfschack]

thank you :)

[jggimi]

"640K ought to be enough for anybody." - Bill Gates, c. 1981

"By the year 2000 we will undoubtedly have a sizable operation on the Moon, we will have achieved a manned Mars landing and it's entirely possible we will have flown with men to the outer planets." - Dr. Wernher von Braun, in 1969.

"He who lives by the crystal ball soon learns to eat ground glass." - Edgar R. Fiedler

"Everything that can be invented has been invented."
- Charles H. Duell, Commissioner, U.S. Office of Patents in 1899

"With over 50 foreign cars already on sale here, the Japanese auto industry isn't likely to carve out a big slice of the U.S. market." - Business Week, August 2, 1968.

"I think there is a world market for maybe five computers." - Thomas Watson, Chairman of IBM, 1943

"The world has got along perfectly well for six thousand years without printing, and has no need to change now." - Filippo di Strata, late 15th century

"There is no reason anyone would want a computer in their home." - Ken Olson, president, chairman and founder of Digital Equipment Corp., 1977

"$100 million dollars is way too much to pay for Microsoft."
- IBM, 1982

"This is the 500th time I've lied to the world." - jggimi

"I never think about the future. It comes soon enough." - Albert Einstein

[ulfschack]

lol :)

[iwod]

Yes, it is possible to write single side dual layer, but i think there is a cost implcation of the drive and the media..... i.e if the media cost 6 times more than a normal single side one layer DVD R, and the drive cost more than twice as much... would you still use it??

[ulfschack]

Aw, come on! Where you born yesterday?

You and I both know that prices in this business do nothing but fall. It's just a matter of how quickly. I say 1-2 years. Of course it's very difficult to say for sure seeing as the 27 or 80 GB standards might push out the need for this, but then again, why should people be forced to buy new players?

When will people ever learn? It's all about demand :)

cheers

[caprioles9000]

wwwwwoowww.....what a thread this has become:) hehehe....i only wished that they had single sided disks that were larger than 4.7g....just would make things simpler (heheh no re-encoding):)))

[ulfschack]

Heh

1-2 years seemed like a good estimate.

cheers