Author Topic: What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?  (Read 23215 times)

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Offline Datu

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Hi everyone! I'm a new member of PinoyDVD. I've heard that there are single and double layer DVDs. Is this true? What is the difference between them? How would you know if it is a single or double layer? ::)
« Last Edit: Jan 31, 2003 at 08:59 AM by Kahon »

Offline pioneer

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Re:Single layer??? Double layer???
« Reply #1 on: Apr 13, 2002 at 09:44 PM »
Single Layer = One code along the inner ring of the disk
Double Layer = Two codes along the inner ring of the disk

Correct me if i'm wrong guys. Thanks.  ;D
Kentobiminekekwek !!!

Offline viper

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Re:Single layer??? Double layer???
« Reply #2 on: Apr 13, 2002 at 10:21 PM »
Double layer DVDs have approximately twice the capacity of single layer disks (DVD-9s).

If I am not mistaken, single layers have silver colored coatings like your conventional CDs and VCDs (which are all single layers) while double layers are gold colored surface.

Of course, iba naman yung flipper where both sides have recorded information.

Hope this helps.
:)

NY152

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Re:Single layer??? Double layer???
« Reply #3 on: Apr 13, 2002 at 10:53 PM »
A single layer DVD can hold 133 minutes (4.7 GB), while a double layer can hold 242 minutes (8.5 GB) per side of the disc.
« Last Edit: Apr 13, 2002 at 11:38 PM by NY152 »

Offline ßartmaniac

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Re:Single layer??? Double layer???
« Reply #4 on: Apr 14, 2002 at 02:11 AM »
form another site's DVD FAQ:

What's the differences between DVD5 and DVD9?

When using a DVD5, just one layer at one side is used.  When using a DVD9, two layers at one side are used. The DVD-laser 'reads' the second layer with data 'through' the first layer. The second layer can not contain as much data as the first layer because data is more spread out(verspreid/verdeeld). This is the reason why you just cannot double storage capacity.

When the first layer is read, the laser needs to 'refocus' on the second layer, this causes a second without data transmission. When this second is put between two scenes, you don't recognize this.


Offline viper

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Re:Single layer??? Double layer???
« Reply #5 on: Apr 14, 2002 at 05:41 PM »
And this is the term that you might encounter in previous posts:

"layer transition"

pertaining to the very slight transition from one layer to another. Manifested as a slight freezing of video before resuming. Usually happens between video tracks to minimize discontinuity in the scenes.

Furthermore, it is interesting to note that the information on the disks is read from the inside to the outside on the first layer. Then after layer transition, the information is read from the outside going inside on the second layer

Offline Rak-Rak

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Re:Single layer??? Double layer???
« Reply #6 on: Apr 14, 2002 at 11:19 PM »
Additional info:
DVD5 -  single layer, 1 side
DVD9 - dual layer single side
DVD10 - two dvd5 on each side like the early releases of Warner bro.
DVD14 - dvd9 on one side, dvd5 on the other side.
DVD18 - dvd9 on both side.

Offline Battousai

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Re:Single layer??? Double layer???
« Reply #7 on: Apr 16, 2002 at 12:04 AM »
Wow!
I thought DVD media was limited to DVD5 and DVD9 only.
Any movies using DVD10-18? Are these for movies nga ba? Or for data/file/back-up purposes only?
Thanks.

Offline Kahon

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Re:Single layer??? Double layer???
« Reply #8 on: Apr 16, 2002 at 12:11 AM »
Wow!
I thought DVD media was limited to DVD5 and DVD9 only.
Any movies using DVD10-18? Are these for movies nga ba? Or for data/file/back-up purposes only?
Thanks.


DVD10 - The 1st wave of DVDs with the widescreen version on one side and the full screen version on the other, ex. Fifth Element (not the superbit)

DVD14 - The Terminator

DVD18 - 1-disk version of Terminator 2 Ultimate Edition, Superman 1, Stephen King's The Stand, Benhur
« Last Edit: Apr 16, 2002 at 12:46 AM by Kahon »

Offline Rak-Rak

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Re:Single layer??? Double layer???
« Reply #9 on: Apr 16, 2002 at 12:45 PM »
Korek ka diyan Kahon, i forgot to put some examples, anyway thanks again.

Rak-Rak


Offline Spartacus

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Re:Single layer??? Double layer???
« Reply #10 on: Apr 16, 2002 at 01:38 PM »
Is there a way of telling which is which without the packaging?
"And maybe there's no peace in this world, for us or for anyone else, I don't know. But I do know that, as long as we live, we must remain true to ourselves."

Offline Rak-Rak

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Re:Single layer??? Double layer???
« Reply #11 on: Apr 20, 2002 at 11:35 PM »

Is there a way of telling which is which without the packaging?


Dual Layer disc have 2 serial numbers on the inner ring.
The GOLD color of the data surface that signifies dual layer is no longer applicable because some Single layer disc have Gold color in their data surface also.
Single layer disc have generally Silver color data surface and a single serial number.

Hope this helps.


Offline Larry_Boy

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Re:Single layer??? Double layer???
« Reply #12 on: May 08, 2002 at 08:26 AM »
Is it correct to assume that dual layered DVDs have better video and audio quality than the single ones?  I noticed that DVDs in DTS and the ones that have lots of special features use it (i.e. dual layer).  Are there any other differences that has not been mentioned yet in this thread/topic?  Thanks a lot for all your replies in advance!
Trust in the Lord with all your heart and lean not on your own understanding. (Prov 3:5)

Offline halo

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Re:Single layer??? Double layer???
« Reply #13 on: Jun 13, 2002 at 06:58 PM »
Larry_boy

Duals can store more information than Singles. Now that we have that out of the way....

Dual and Single layer dvds have no DIRECT impact on the video/audio quality of the movie. However, the less compression the movie suffers, the better the quality. So, more space = less compression = better video quality.

DTS is the preferred choice for most people but the DTS format takes up a lot of space, that's another reason why most (all?) DTS dvds are dual, for better picture and to accomodate the DTS feature, same goes for the number of special features. More space means a larger accomodation of "extras".
« Last Edit: Jun 13, 2002 at 07:03 PM by halo »

Offline ebs

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Re:Single layer??? Double layer???
« Reply #14 on: Jun 14, 2002 at 04:02 AM »
hayop!  ang galing niyo ah!

so how does this work with the criterion collection movies?  i have some...  i only checked 1, it was silver but looked like it had 2 serial numbers... so is that dual?

Offline Kahon

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Re:Single layer??? Double layer???
« Reply #15 on: Jun 14, 2002 at 07:32 AM »
I'd like to add to what halo said above: the MASTERING of the movie also counts a lot in determining the final video / audio quality of the dvd.  If you have lousy mastering software (that digitizes the movie) then i doubt if you'll get quality superior to film transfers on betamax in the good ol' days, even if the movie is stored on DVD9.  

« Last Edit: Jun 14, 2002 at 07:44 AM by Kahon »

Offline Mitsurugi

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What are DVD-5 and DVD-9 discs?
« Reply #16 on: Jul 09, 2002 at 01:56 PM »
I'm new to this DVD thingy
does anyone know what this DVD9 is?
is it pirated?

heard it from someone here at the office
they where comparing DVD5 and DVD9

thanks!
« Last Edit: Jul 09, 2002 at 08:11 PM by Sumbong »

Offline gumby

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Re:??DVD 9??
« Reply #17 on: Jul 09, 2002 at 02:27 PM »
Lemme try to answer this (but if I make mistakes, sorry na lang po kasi newbie rin ako):

DVD5 I believe are the so-called "single-layered" discs. This means that only one layer of data is written on the disc. DVD5 has about 4GB of data, or more than 2 hours of video.

DVD9 is the so-called "dual layered" discs. This means that two layers of data are written on the disc, separated only by a chapter switch (I think that's what its called). DVD9 has about 8GB of data, or about 4 hours of video.

Pirates manufacture both type of DVDs. To distinguish what is which, most DVD9s have a sticker on the cover labeled "DVD9".

Hope I got 'em right :)

Offline Mitsurugi

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Re:??DVD 9??
« Reply #18 on: Jul 09, 2002 at 04:12 PM »
thanks for the info gumby!

does it mean that the dvd9's quality is better
than the 5 because of the double layer?

thanks again!

Offline gumby

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Re:??DVD 9??
« Reply #19 on: Jul 09, 2002 at 04:27 PM »
Quality is one way of looking at their difference, Mitsurugi. Since more data can be crammed into a DVD9 than a DVD5, you always get "more bang for your buck" in terms of movie having a better quality and/or more features.

Have you heard of a DVD18? It's a double-sided, dual-layered DVD - I think. It can hold about 16GB of data, or about 8 hours.

Offline taz

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ARE DVD9 CONSIDERED AS PIRATED??
« Reply #20 on: Aug 27, 2002 at 03:45 PM »
Hi! I would like to know are DVD9 be considered as pirated dvds?? Because i bought mine from Quiapo where our brothers of abu are selling this dvd's.. Amounting 350 each.. It has all features like DTS FORMAT na and others...

Offline dexterc

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Re:ARE DVD9 CONSIDERED AS PIRATED??
« Reply #21 on: Aug 27, 2002 at 04:02 PM »
As long as the DVD are not sold by authorized dealers, they are considered pirated...350 each?...hhhmmmm!! ;D
« Last Edit: Aug 27, 2002 at 05:01 PM by DVDiva »

Offline ßartmaniac

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Re:ARE DVD9 CONSIDERED AS PIRATED??
« Reply #22 on: Aug 27, 2002 at 05:04 PM »
Hi! I would like to know are DVD9 be considered as pirated dvds?? Because i bought mine from Quiapo where our brothers of abu are selling this dvd's.. Amounting 350 each.. It has all features like DTS FORMAT na and others...

Hi enrique13ph, wecome to PinoyDVD! :)

When one says DVD9 in DVD terms, it doesn't mean pirated DVD.  DVD9 refers to 'dual-layer' discs which can hold more data compared to DVD5 (single-layer).  Now, the reason the abus fuss about these DVDs they call as 'DVD9' is because these discs generally are clearer than regular bootlegs (those discs selling at  P100.00 or below) and holds more features comparable to the original counterparts.

In summary, DVD9 refers to the disc itself or the medium where the data is stored.  With regards to the DVD9 you were refering to, the discs per se aren't pirated, the contents are. ;)
« Last Edit: Jan 31, 2003 at 09:05 AM by Kahon »

Offline benny

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Re:ARE DVD9 CONSIDERED AS PIRATED??
« Reply #23 on: Aug 28, 2002 at 08:48 AM »
Welcome to Pinoydvd, enrique13ph.  :)

Please read on -->  DVD Piracy Discussion (Part 10)

Thanks.



« Last Edit: Jan 31, 2003 at 09:06 AM by Kahon »

Offline baker

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DVD 9, What is it?
« Reply #24 on: Nov 05, 2002 at 02:34 PM »
I would like to request some information on DVD 9s. What is the quality like? Is this pirated? Any information you give will be highly appreciated.

Offline taz

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dvd 9 with lots of features??
« Reply #25 on: Nov 07, 2002 at 10:40 AM »
Hi! I would like to know that dvd 9 can handle some features like dts-es and multi-angle?? cos ive seen this concert of the corrs on which it is dvd9 and it has a multi angle on its cover and im not sure it has this feature.. and somebody said to me that dvd9 can now produce with dts-es..  

Offline Kahon

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Re:dvd 9 with lots of features??
« Reply #26 on: Nov 08, 2002 at 10:44 AM »
DVD9s double layered single sided DVDs and so have double the capacity of DVD5s (single layer single sided DVDs).  So there is more space and you can cram more information into a DVD9.  But it doesn't really mean that DVD5s cannot have DTS-ES and multiple angle features.  It just means that there is less space to do it on a DVD5 disk and so both audio and video resolution may be compromised compared to a DVD9 disk.
« Last Edit: Jan 31, 2003 at 09:04 AM by Kahon »

Offline jepoi

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Re:What are DVD-5 and DVD-9 discs?
« Reply #27 on: Nov 30, 2002 at 08:16 PM »
so, how do you distinguish a dvd9 disk if there's no sticker on the case?  i've read somewhere in here that there's something you look at the middle part of the disk itself?
 ??? ??? ???

Offline viper

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Re:What are DVD-5 and DVD-9 discs?
« Reply #28 on: Nov 30, 2002 at 08:20 PM »
Most DVD-9s are gold coated. Most DVD-5s are silver coated.

If something was erased on the BCA (Burst cutting area), it definitely is a pirated disk!

BCA - that circular portion on the disc near the center hole were information is 'printed' or burned in

Offline nerveblocker

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Re:What are DVD-5 and DVD-9 discs?
« Reply #29 on: Dec 01, 2002 at 07:46 AM »
Most of my Viva DVDs (Toy Story, Rescuers Down Under and Corky Romano) are in DVD9's.  It says so in the case.