Sorry for stirring this topic again, but I have another question. There seems to be a difference between "dual layer" and "double layer." Reason I suspect this, is because I bought a Verbatim "Double Layer" 8.5GB DVD and copied the 9.2 Pro DVD onto it. Unforunately my normal DVD-ROM, and no other DVD-ROM I tried. It does work on a few DVD writers though. Thanks -- Kind regards Hans du Plooy SagacIT (Pty) Ltd hansdp at sagacit dot com
Hans du Plooy wrote:
Sorry for stirring this topic again, but I have another question.
There seems to be a difference between "dual layer" and "double layer." Reason I suspect this, is because I bought a Verbatim "Double Layer" 8.5GB DVD and copied the 9.2 Pro DVD onto it. Unforunately my normal DVD-ROM, and no other DVD-ROM I tried. It does work on a few DVD writers though.
Think of "double layer" or "double sided" as two separate disks, that just happen to share the same piece of plastic. A dual layer disk has twice the capacity available, without changing or flipping.
On Thursday 03 March 2005 16:33, James Knott wrote:
There seems to be a difference between "dual layer" and "double layer." Reason I suspect this, is because I bought a Verbatim "Double Layer" 8.5GB DVD and copied the 9.2 Pro DVD onto it. Unforunately my normal DVD-ROM, and no other DVD-ROM I tried. It does work on a few DVD writers though.
Think of "double layer" or "double sided" as two separate disks, that just happen to share the same piece of plastic. A dual layer disk has twice the capacity available, without changing or flipping.
Could there be a difference between the layout of data on the disc between "double layer" and "dual layer" ? I know "double sided" - the disc I used definitely wasn't double sided. That's why I'm curious of what the difference between "double layer" and "dual layer" might be. My drive (LG 16x DVD-ROM) can read the original disc fine, but no the copied one. No other DVD-ROM I've tried it on would read the copied one. -- Kind regards Hans du Plooy SagacIT (Pty) Ltd hansdp at sagacit dot com
On Fri, 4 Mar 2005 17:50, Hans du Plooy wrote:
On Thursday 03 March 2005 16:33, James Knott wrote:
There seems to be a difference between "dual layer" and "double layer." Reason I suspect this, is because I bought a Verbatim "Double Layer" 8.5GB DVD and copied the 9.2 Pro DVD onto it. Unforunately my normal DVD-ROM, and no other DVD-ROM I tried. It does work on a few DVD writers though.
Think of "double layer" or "double sided" as two separate disks, that just happen to share the same piece of plastic. A dual layer disk has twice the capacity available, without changing or flipping.
Could there be a difference between the layout of data on the disc between "double layer" and "dual layer" ?
I know "double sided" - the disc I used definitely wasn't double sided. That's why I'm curious of what the difference between "double layer" and "dual layer" might be.
My drive (LG 16x DVD-ROM) can read the original disc fine, but no the copied one. No other DVD-ROM I've tried it on would read the copied one.
I had a similar problem. I burnt the image on the Verbatim DVD using a lite-on Writer and found that I could not read the image at all with my Pioneer Single layer burner. I then updated the firmware on the Pioneer and found that I could read the image but was flaky. At one stage I managed to verify the DVD with YaST but another time it would not verify. Also when using the image to do a new install it would hang every so often. This brings me to believe that the tracking between different writers may not be 100%. Meaning a disc created in one machine may not be readable in another machine at this high density, whereas you will find it will always be readable in the machine that created the disc in the first place. Also I think the media itself can have an effect on the outcome. I have DVD's that I cannot write to in one Writer but using another brand of Writer there is no problem. -- Regards, Graham Smith ---------------------------------------------------------
On Fri, 4 Mar 2005 18:53:42 +1100, Graham Smith <gqs@westnet.com.au> wrote:
Also I think the media itself can have an effect on the outcome. I have DVD's that I cannot write to in one Writer but using another brand of Writer there is no problem.
-- Regards,
Graham Smith ---------------------------------------------------------
Graham. I think that has always been the case with optical discs. I couldn't use cheap discs in my old CD burner. But with my newer one I can, no problem. Do you have a cleaning utility for your drives? I use one of those CDs which has a series of little soft brushes on them to clean the laser lens. It works a treat and is well worth the small investment. It might help... -- Take care. Kevan Farmer 34 Hill Street Cheslyn Hay Staffordshire WS6 7HR
Hans du Plooy wrote:
On Thursday 03 March 2005 16:33, James Knott wrote:
There seems to be a difference between "dual layer" and "double layer." Reason I suspect this, is because I bought a Verbatim "Double Layer" 8.5GB DVD and copied the 9.2 Pro DVD onto it. Unforunately my normal DVD-ROM, and no other DVD-ROM I tried. It does work on a few DVD writers though.
Think of "double layer" or "double sided" as two separate disks, that just happen to share the same piece of plastic. A dual layer disk has twice the capacity available, without changing or flipping.
Could there be a difference between the layout of data on the disc between "double layer" and "dual layer" ?
I know "double sided" - the disc I used definitely wasn't double sided. That's why I'm curious of what the difference between "double layer" and "dual layer" might be.
My drive (LG 16x DVD-ROM) can read the original disc fine, but no the copied one. No other DVD-ROM I've tried it on would read the copied one.
Perhaps you'd better ask in a DVD group.
Hans du Plooy <hansdp@sagacit.com> writes:
On Thursday 03 March 2005 16:33, James Knott wrote:
There seems to be a difference between "dual layer" and "double layer." Reason I suspect this, is because I bought a Verbatim "Double Layer" 8.5GB DVD and copied the 9.2 Pro DVD onto it. Unforunately my normal DVD-ROM, and no other DVD-ROM I tried. It does work on a few DVD writers though.
Yes, there are lots of compatibility problems with self-burned Dual Layer. The mediatype is one issue. Btw. use growisofs for burning.
Think of "double layer" or "double sided" as two separate disks, that just happen to share the same piece of plastic. A dual layer disk has twice the capacity available, without changing or flipping.
Could there be a difference between the layout of data on the disc between "double layer" and "dual layer" ?
No - both is the same.
I know "double sided" - the disc I used definitely wasn't double sided. That's why I'm curious of what the difference between "double layer" and "dual layer" might be.
My drive (LG 16x DVD-ROM) can read the original disc fine, but no the copied one. No other DVD-ROM I've tried it on would read the copied one.
The drive that burned it should be able to read it also, Andreas -- Andreas Jaeger, aj@suse.de, http://www.suse.de/~aj SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GPG fingerprint = 93A3 365E CE47 B889 DF7F FED1 389A 563C C272 A126
On Thursday 03 March 2005 14:57, Hans du Plooy wrote:
Sorry for stirring this topic again, but I have another question.
There seems to be a difference between "dual layer" and "double layer." Reason I suspect this, is because I bought a Verbatim "Double Layer" 8.5GB DVD and copied the 9.2 Pro DVD onto it. Unforunately my normal DVD-ROM, and no other DVD-ROM I tried. It does work on a few DVD writers though.
Not sure about the difference, but I have one dvd drive here out of 4, that won't read the SUSE DVD. Tried everything I can think of. It's a samsung, if that makes any difference. The rest of my drives are either lg or panasonic. All read it without problems. Mike -- Powered by SuSE 9.2 Kernel 2.6.8 KDE 3.3.0 Kmail 1.7.1 For Mondo/Mindi backup support go to http://www.mikenjane.net/~mike 4:37pm up 3 days 23:52, 3 users, load average: 2.10, 2.13, 2.19
participants (6)
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Andreas Jaeger -
Graham Smith -
Hans du Plooy -
James Knott -
Kevanf1 -
Mike