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DVD Forum => General DVD Discussion => FAQs => Topic started by: Datu on Apr 13, 2002 at 05:42 AM

Title: What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: Datu on Apr 13, 2002 at 05:42 AM
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? ::)
Title: Re:Single layer??? Double layer???
Post by: pioneer 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
Title: Re:Single layer??? Double layer???
Post by: viper 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.
:)
Title: Re:Single layer??? Double layer???
Post by: NY152 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.
Title: Re:Single layer??? Double layer???
Post by: ßartmaniac 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.

Title: Re:Single layer??? Double layer???
Post by: viper 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
Title: Re:Single layer??? Double layer???
Post by: Rak-Rak 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.
Title: Re:Single layer??? Double layer???
Post by: Battousai 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.
Title: Re:Single layer??? Double layer???
Post by: Kahon 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
Title: Re:Single layer??? Double layer???
Post by: Rak-Rak on Apr 16, 2002 at 12:45 PM
Korek ka diyan Kahon, i forgot to put some examples, anyway thanks again.

Rak-Rak

Title: Re:Single layer??? Double layer???
Post by: Spartacus on Apr 16, 2002 at 01:38 PM
Is there a way of telling which is which without the packaging?
Title: Re:Single layer??? Double layer???
Post by: Rak-Rak 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.

Title: Re:Single layer??? Double layer???
Post by: Larry_Boy 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!
Title: Re:Single layer??? Double layer???
Post by: halo 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".
Title: Re:Single layer??? Double layer???
Post by: ebs 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?
Title: Re:Single layer??? Double layer???
Post by: Kahon 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.  

Title: What are DVD-5 and DVD-9 discs?
Post by: Mitsurugi 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!
Title: Re:??DVD 9??
Post by: gumby 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 :)
Title: Re:??DVD 9??
Post by: Mitsurugi 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!
Title: Re:??DVD 9??
Post by: gumby 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.
Title: ARE DVD9 CONSIDERED AS PIRATED??
Post by: taz 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...
Title: Re:ARE DVD9 CONSIDERED AS PIRATED??
Post by: dexterc 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
Title: Re:ARE DVD9 CONSIDERED AS PIRATED??
Post by: ßartmaniac 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. ;)
Title: Re:ARE DVD9 CONSIDERED AS PIRATED??
Post by: benny on Aug 28, 2002 at 08:48 AM
Welcome to Pinoydvd, enrique13ph.  :)

Please read on -->  DVD Piracy Discussion (Part 10) (http://www.pinoydvd.com/yabbse/index.php?board=3;action=display;threadid=5772)

Thanks.



Title: DVD 9, What is it?
Post by: baker 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.
Title: dvd 9 with lots of features??
Post by: taz 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..  
Title: Re:dvd 9 with lots of features??
Post by: Kahon 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.
Title: Re:What are DVD-5 and DVD-9 discs?
Post by: jepoi 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?
 ??? ??? ???
Title: Re:What are DVD-5 and DVD-9 discs?
Post by: viper 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
Title: Re:What are DVD-5 and DVD-9 discs?
Post by: nerveblocker 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.
Title: Re:What are DVD-5 and DVD-9 discs?
Post by: tuff_u_gong on Dec 03, 2002 at 02:46 PM
Can we check if a disc is DVD5, DVD9 or DVD 18 using an ordinary PC DVD ROM reader? if not, what hardware do we need to find out?

thanks!
Title: Re:What are DVD-5 and DVD-9 discs?
Post by: sgc_wdi on Dec 03, 2002 at 03:04 PM
Tuff,

you can check via your dvdrom. Sa windows explorer, right click on the dvdrom drive, then click on properties. Pag 4GB lang nakalagay, DVD5, pag 9GB, dvd9 siya.
Title: Re:What are DVD-5 and DVD-9 discs?
Post by: tuff_u_gong on Dec 04, 2002 at 06:25 AM
thanks again sgc !
Title: Re:What are DVD-5 and DVD-9 discs?
Post by: jazzyjayt on Dec 08, 2002 at 05:00 PM
have p-disc makers resorted to using the DVD9 logo even on DVD5 discs just to boost sales?  has anyone bought such mislabeled discs?
Title: Re:What are DVD-5 and DVD-9 discs?
Post by: sgc_wdi on Dec 08, 2002 at 05:35 PM
I'm not sure if they do, but you can always check, using a DVDROM...
Title: Re:What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: levi on Jun 18, 2003 at 01:12 AM
bump for new members
Title: Re:What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: Butchukoy on Aug 06, 2003 at 08:42 PM
Offensive post removed.
Title: Re:ARE DVD9 CONSIDERED AS PIRATED??
Post by: Butchukoy on Aug 06, 2003 at 08:44 PM
Offensive post removed.
Title: Re:ARE DVD9 CONSIDERED AS PIRATED??
Post by: Butchukoy on Aug 06, 2003 at 08:48 PM
Inappropriate post removed.
Title: Re:What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: ding2lang-ako on Sep 11, 2003 at 12:59 PM
Pls. refrain from discussing pirated materials in this forum.

Post removed.

-mode Kahon
[/i]
Title: Re:What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: mooncake2 on Nov 12, 2003 at 02:08 PM
I'm new to Pinoy, but I hope u experienced guys out there may help.

I read thru this thread and found that there are 2 ways to check if the disc is DVD5 or 9:
1. DVD5 has 1 serial # at the ring. DVD9 has 2 serial #.
2. DVD5 reports as 4GB when read on DVDROM. DVD9 reports 9GB.

Correct me if I'm wrong on the 2 points above.  
My real question is, can we tell the difference between DVD5 and 9 by just looking at the disk surface?  I heard that the DVD9 looks wavy on the surface (water like), but DVD5 is just smooth on the surface.  

Pls confirm, anyone?
Title: What do single layer and double layer mean?
Post by: guderian on Dec 16, 2003 at 02:08 PM
Hi guys!

A few months ago I bought the DVD of soldier in astroplus, and when I opened it, I was surprised to find that the re was no label on the top of the disc.  Both sides looked like the readable side, and there was this removable plastic tag that was written in chinese, so I couldn't understand it.

I found the disc amusing - being a reltive newbie to DVDs, I first thought that you had to turn the disc over in the middle of the movie.  Anyway, can anyone explain why the disc was manufactured that way, and what that tag might mean (for anyone who also bought this ded).  I'm still intrigued...

thanks! 8)
Title: Re:What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: Philander on Dec 16, 2003 at 02:17 PM
guderian,

The DVD is called DVD-10 (or DVD-18):
http://www.dvddemystified.com/dvdfaq.html#3.3 (http://www.dvddemystified.com/dvdfaq.html#3.3)

Title: Re:What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: guderian on Dec 17, 2003 at 03:10 PM
Thanks for the link, bro! I was enlightened  8)
Title: Re:What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: mooncake2 on Jan 02, 2004 at 04:41 PM
Guys,

Can u help me clear my doubts on my questions below? I posted this earlier on, but no feedback gotten.

Thx in advance.


I'm new to Pinoy, but I hope u experienced guys out there may help.

I read thru this thread and found that there are 2 ways to check if the disc is DVD5 or 9:
1. DVD5 has 1 serial # at the ring. DVD9 has 2 serial #.
2. DVD5 reports as 4GB when read on DVDROM. DVD9 reports 9GB.

Correct me if I'm wrong on the 2 points above.  
My real question is, can we tell the difference between DVD5 and 9 by just looking at the disk surface?  I heard that the DVD9 looks wavy on the surface (water like), but DVD5 is just smooth on the surface.  

Pls confirm, anyone?
Title: Re: What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: alrey on Jul 19, 2004 at 08:55 PM
Hi guys,

This is my first posting.  Ok to finally clear up the matter:

- most original DVDs released today are DVD9, reason is to lessen the compression and improve quality.
- most fake DVDs are DVD5, reason is to sell it at a lower price as single layer disc is cheaper but quality suffers.
- to easily distinguish quality between 5 and 9, watch the movie on your computer, preferrably on bigger monitors 17"+
- distinguishing between 5 and 9 by just looking at the discs alone is virtually impossible.
- if you want to be sure, bring a notebook when buying DVDs and look at the capacity.  DVD5 is almost 5GB and DVD9 is almost 9GB.

Hope this helps :)


Title: Re: What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: tinggoy on Aug 08, 2004 at 08:54 PM
where can i buy dvd-9 double layer at magkano sa cdr king wala pa daw....
Title: Re: What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: Bokong on Aug 28, 2004 at 01:41 AM
Just bought a Sony DRU700A double-layer DVD burner. Anyone knows where I could buy recordable double layer DVD discs? I understand that Verbatim has already come out in the market with these. But I can't find any anywhere. Please help.
Title: Re: What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: Kahon on Aug 28, 2004 at 02:20 AM
Bokong and tinggoy

pls post your queries at at the DVD Rom and DVD Backup Board. 

Thanks.

-mod
Title: Re: What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: Bokong on Oct 15, 2004 at 08:14 PM
Has anyone noticed the "RW" insignia on most DVD+/-R disks? It certainly does not stand for ReWritable because they are not. ReWritable disks are DVD+/-RW. Anyone knows what it means?
Title: Re: What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: diesel on Sep 09, 2005 at 09:30 AM
layer transition (or the slight pause that usually occurs a little over an hour after the movie is being played) i guess is the only trade-off with the dvd9.
Title: Re: What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: barrister on Sep 09, 2005 at 04:48 PM
Has anyone noticed the "RW" insignia on most DVD+/-R disks? It certainly does not stand for ReWritable because they are not. ReWritable disks are DVD+/-RW. Anyone knows what it means?

Courtesy of Bos Firewired:

From Wikipedia:

The DVD Forum created the official DVD-R(W) standards. As the licensing cost for the technology was very high, another group was founded: the DVD+RW Alliance who created a standard with lower licensing costs. At first, DVD+R(W) media were typically more expensive than DVD-R(W) media, but the prices are now very similar. Since DVD+R(W) discs are not technically DVDs as per the DVD Forum standards, they are not allowed to display the DVD logo; instead, they display an "RW" logo. However, they are readable by most DVD drives, so they are referred to as DVD+RW or DVD+R.

The "+" (plus) and "-" (dash) are similar technical standards and are partially compatible. As of 2004, both formats are equally popular, with about half of the industry supporting "+", and the other half "-". It is open to debate whether either format will push the other out of the market, or whether they will co-exist indefinitely. All DVD readers are supposed to read both formats, though real-world compatibility is around 90% for both formats, with DVD-R having the best overall compatibility in independent tests. Most new DVD writers can write both formats and carry both the RW and DVD logos.


Visit the official DVD Forum site (http://www.dvdforum.com/forum.shtml) for more information.


Title: Re: What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: syoti on Apr 08, 2006 at 11:50 AM
medyo off topic pero ndi ko kasi alam kng saan magtatanong e. maybe it has already been discussed... i know u can see the specifications of a DVD through a PC like kng dvd-9 b cya or region 3 etc but i do not know how.. can anyone tell me pls.. or jsut show me the link..  thanks :)
Title: Re: What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: Ranch on Apr 24, 2007 at 04:33 PM
Can you identify DVD5 or DVD9 by looking at the packaging?

I was amazed to have bought 3 for 600 DVD only to find out they are of low quality. I spend around 3000k (15 DVD) thinking its a bargain until i saw the pixelized screen shots.

Thanks
Title: Re: What are DVD-5 and DVD-9 discs? What do single layer and double layer mean?
Post by: Mr. Hankey on Apr 27, 2007 at 09:29 AM
Can you identify DVD5 or DVD9 by looking at the packaging?

There's no actual marking on most of the exteriors, so I'm sorry, you can't tell for sure.

But there's a rough guide on how you can tell. Please check techdude's posts on this thread (http://pinoydvd.com/board/index.php?topic=61337.msg648810#msg648810). They're mostly accurate.