Dual layer DVDRs

[Guest]

Archived from groups: rec.video.desktop (More info?)

I'm considering getting a dual layer DVD burner. One candidate is definitely
http://www.plextor.com/english/products/716SA.htm.

First off, it looks like only DVD+R media supports dual layers. What about
DVD-R media? Do they have any plans to support it?

Do I need to find out whether my standalone DVD player will support reading
dual layer DVD+R? If it can read single layer DVD+Rs, does it automatically
mean it can read dual layer DVD+Rs?

Suppose I have a long MPEG-2 file that will occupy 8.5GB (2 layers). I will
want to make a 1 title out of it. Will a DVD player pause once it goes from one
layer to another. If it pauses, then if I have 2 titles 3GB each, is it possible
to split them the way that each occupies its own layer? Thanks.

--Leonid

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

See www.videohelp.com
www.deja.com
www.cdfreaks.com -> forums
www.rpc1.org -> forums

All of the Q's you've asked have already been answered in depth.

> First off, it looks like only DVD+R media supports dual layers. What about
> DVD-R media? Do they have any plans to support it?

http://www.pioneer.co.jp/press/release125.html
http://www.dvdforum.org/27scmtg-resolution.htm
27th Steering Committee Meeting (September 22, 2004)
6 Specifications for Dual Layer DVD-R Version 2.9 Approved


> Do I need to find out whether my standalone DVD player will support reading
> dual layer DVD+R? If it can read single layer DVD+Rs, does it automatically
> mean it can read dual layer DVD+Rs?

Yes. www.videohelp.com has listings of most DVD players and their
current, tested compatibility.
No. DL discs are harder to read and a lot of older and newer
equipment can't deal with the DL discs.

> Suppose I have a long MPEG-2 file that will occupy 8.5GB (2 layers). I will
> want to make a 1 title out of it. Will a DVD player pause once it goes from one
> layer to another. If it pauses, then if I have 2 titles 3GB each, is it possible
> to split them the way that each occupies its own layer? Thanks.

The pausing of video entirely depends on how fast the DVD player can
make the layer changeover. A fast player shouldn't skip and it should
look seemless, but you can't expect that on every player.

You will have to mark/split the video no matter what into seperate
parts that'll fit on each layer when the length of a single video is
longer than will fit on one of the two layers.

Yes. it is possible.

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

In test we have performed using an older Toshiba set top DVD player there
was no problem with reading the dual layer discs we authored. The older
Toshiba is our tried-and-true test machine and when it will play a disc then
98% of all others will too.
--
Larry Johnson
Digital Video Solutions
webmaster@digitalvideosolutions.com
http://www.digitalvideosolutions.com
877-227-6281 Toll Free Sales Assistance
386-672-1941 customer Service
386-672-1907 Technical Support
386-676-1515 Fax

"Leonid Makarovsky" <venom@cs.bu.edu> wrote in message
news:conhm6$k1t$1@news3.bu.edu...
> I'm considering getting a dual layer DVD burner. One candidate is
definitely
> http://www.plextor.com/english/products/716SA.htm.
>
> First off, it looks like only DVD+R media supports dual layers. What about
> DVD-R media? Do they have any plans to support it?
>
> Do I need to find out whether my standalone DVD player will support
reading
> dual layer DVD+R? If it can read single layer DVD+Rs, does it
automatically
> mean it can read dual layer DVD+Rs?
>
> Suppose I have a long MPEG-2 file that will occupy 8.5GB (2 layers). I
will
> want to make a 1 title out of it. Will a DVD player pause once it goes
from one
> layer to another. If it pauses, then if I have 2 titles 3GB each, is it
possible
> to split them the way that each occupies its own layer? Thanks.
>
> --Leonid
>

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

> The older
>Toshiba is our tried-and-true test machine and when it will play a disc then
>98% of all others will too.

Hey Larry, care to share the model number of that Toshiba? Thanks
Craig H.

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

David Chien <chiendh@uci.edu> wrote:
: http://www.pioneer.co.jp/press/release125.html

Page not found.


: http://www.dvdforum.org/27scmtg-resolution.htm

Thanks.


: You will have to mark/split the video no matter what into seperate
: parts that'll fit on each layer when the length of a single video is
: longer than will fit on one of the two layers.

So I can't put 1 title that occupies both layers, correct?

Now there're no DL DVD-R discs yet. If I go ahead and buy Plextor that can
burn DL DVD+Rs, it won't support the newer format of DL DVD-Rs when they come
out. I guess it's better to wait.

--Leonid

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

Leonid Makarovsky wrote:

> David Chien <chiendh@uci.edu> wrote:
> : http://www.pioneer.co.jp/press/release125.html
>
> Page not found.

is there today. there servers must be iffy:
Information contained in the press release is current as of the date
of announcement.
It is subject to change without prior notice.



For immediate release October 3, 2003

Pioneer Corporation

Pioneer Develops DVD-R Dual-layer Recording Technology
Realizing the recording capacity of up to 8.5GBytes on one side

October 3, 2003, Tokyo, Japan - Pioneer Corporation has announced today
that the company developed the DVD-R dual-layer recording technology. It
means that the technological foundation has almost been established to
commercialize DVD-R discs, where data up to 8.5GBytes can be recorded on
one side.

The new dual-layer recording technology, adopting the dye-recording-film
layer method, has realized a 9.34% jitter with a 17.3% reflection rate
on the first layer (L0) of a disc, and an 8.08% jitter with a 19.5%
reflection rate for the second layer (L1). This shows almost the same
performance as that for dual-layer DVD-ROM discs. It means that DVD-R
discs supporting this technology can be played back on most existing DVD
players, and DVD recorders supporting this technology will be developed
easily.

In the rapidly growing DVD recorder market, there has been a strong need
from users for longer hours, yet high picture quality DVD disc
recording. Pioneer's new technology will allow the users to record
programs of up to about 4 hours in the SP mode, or programs of up to
about 12 hours in the EP mode with DVD recorders.

The company intends to make a proposal of this technology as a new disc
format to the DVD Forum after further improvement in performance.

> So I can't put 1 title that occupies both layers, correct?

I'm not totally clear on the title/video/chapter/break/ thing, but
the way it goes, you can have one long video that is longer than the
entire single layer and will fit on the dual layer, but you can't expect
the video stream to play back continously w/o any visible pauses when a
DVD player switches layers during playback. This point is marked in the
video by you before you burn the video to the disc, and the burning
software will split the video and place one part on one layer, the other
part on another layer during the burning. This is still one continous
video that may pause momentarily at that break during the switch. It
should still be just one title, but someone will need to clarify us on that.

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

Thanks.

--Leonid

David Chien <chiendh@uci.edu> wrote:
: Leonid Makarovsky wrote:

:> David Chien <chiendh@uci.edu> wrote:
:> : http://www.pioneer.co.jp/press/release125.html
:>
:> Page not found.

: is there today. there servers must be iffy:
: Information contained in the press release is current as of the date
: of announcement.
: It is subject to change without prior notice.



: For immediate release October 3, 2003

: Pioneer Corporation

: Pioneer Develops DVD-R Dual-layer Recording Technology
: Realizing the recording capacity of up to 8.5GBytes on one side

: October 3, 2003, Tokyo, Japan - Pioneer Corporation has announced today
: that the company developed the DVD-R dual-layer recording technology. It
: means that the technological foundation has almost been established to
: commercialize DVD-R discs, where data up to 8.5GBytes can be recorded on
: one side.

: The new dual-layer recording technology, adopting the dye-recording-film
: layer method, has realized a 9.34% jitter with a 17.3% reflection rate
: on the first layer (L0) of a disc, and an 8.08% jitter with a 19.5%
: reflection rate for the second layer (L1). This shows almost the same
: performance as that for dual-layer DVD-ROM discs. It means that DVD-R
: discs supporting this technology can be played back on most existing DVD
: players, and DVD recorders supporting this technology will be developed
: easily.

: In the rapidly growing DVD recorder market, there has been a strong need
: from users for longer hours, yet high picture quality DVD disc
: recording. Pioneer's new technology will allow the users to record
: programs of up to about 4 hours in the SP mode, or programs of up to
: about 12 hours in the EP mode with DVD recorders.

: The company intends to make a proposal of this technology as a new disc
: format to the DVD Forum after further improvement in performance.

:> So I can't put 1 title that occupies both layers, correct?

: I'm not totally clear on the title/video/chapter/break/ thing, but
: the way it goes, you can have one long video that is longer than the
: entire single layer and will fit on the dual layer, but you can't expect
: the video stream to play back continously w/o any visible pauses when a
: DVD player switches layers during playback. This point is marked in the
: video by you before you burn the video to the disc, and the burning
: software will split the video and place one part on one layer, the other
: part on another layer during the burning. This is still one continous
: video that may pause momentarily at that break during the switch. It
: should still be just one title, but someone will need to clarify us on that.