How this much data can be fit into a DVD?

[honeyxp]

Hi, I don't know whether I am posting my question in a right place or not, if not sry... If any moderators, he/she may move my question into a proper category!

The question is:

I have bought some DVDs, and although each DVD normally has a capacity of 4.7GB, in these DVDs there are files stored which in their properties, their size is shown as about 200GB total! How is it possible to include this much data in a 4.7GB disk? they are all video files!

Have a look at the picture below to see what I mean:

http://imgur.com/a/J4Mkl

How has it been created? May I also burn DVDs like this? Or any kinds of special hardware is required?

 

[Rocky Bennett]

Simply put, it is not possible. A DVD has a very specific physical limit and no DVD can possibly hold more that the physical limit.

 

[honeyxp]

Simply put, it is not possible. A DVD has a very specific physical limit and no DVD can possibly hold more that the physical limit.

I know that technically, physically and logically it's impossible, but this has happened... I can't understand how it has been done. Look! Down I'll attach more pictures of that Drive to see more clearly:

All I knew from computer field so far, is now completely under a big QUESTION MARK!! I've studied IT but hadn't seen such this thing before. You can see in the images above that there are many 1GB videos in one single DVD! I don't know where the problem is!

I looked for it on the Internet and no similar subject was found. I myself think something is wrong with the OS!

I also remember a time when Windows Vista had recently been released and I downloaded a file with the size of only about 4 MB (!!!) and when I extracted it, it changed to a, I think, 4 GB file! After that I could neither find that file nor find how it had been created anywhere on the Internet!

 

[scout_03]

those movies where they come from .

 

[honeyxp]

those movies where they come from .

One of my friends has bought some DVDs to use for self-study (seems they are all video lessons). I told her to test it on another PC or laptop but the same result... This much of information on a single DVD? + It is one of those DVDs that has been packed together, all of them have this much amount of data each! And can't be copied to External Storage devices due to high amount of size! Another thing I'm thinking about is that: these sizes are fake to prevent DVDs from being copied! But I don't know how!!! Just a theory...!

 

[u2desire420]

It is because each chapter is listed as a 1 GB vob file or set of vob files but only 1 set of them contains the full movie the rest are like symbolic links that point to the main file. I am not sure why it is done like that my guess is it fool early DVD ripping software. Copying them to hard drive will not allow you to play them from hard drive unless DVD copy protection isn't present in them.

 

[scout_03]

if they have a copy write on them forum rules does not permit to help bypass that .

 

[madmatt30]

Ita a fake TOC to stop copying , some as that.

 

[honeyxp]

It is because each chapter is listed as a 1 GB vob file or set of vob files but only 1 set of them contains the full movie the rest are like symbolic links that point to the main file. I am not sure why it is done like that my guess is it fool early DVD ripping software. Copying them to hard drive will not allow you to play them from hard drive unless DVD copy protection isn't present in them.

I think that's true, kinda shredding files into all DVDs... But if that's true, all DVDs must have exactly the same size, mustn't?

if they have a copy write on them forum rules does not permit to help bypass that .

No that was just the thing I guessed. I don't know if there are copy-protected or not. Just wanted to know the reason. Not willling to do something Illegial! Just trying to clear out the subject for myself. And also I'm not asking you to give me ways to copy those DVDs. Because they are my friends not my. However thanks for your attention...

Ita a fake TOC to stop copying , some as that.

Interesting...

 

[madmatt30]

It is honestly a very very old (& very basic) form of copy protection , its very easy to introduce a fake TOC (changing the shown file size) which makes copying the files not impossible at all but really not worth the hassle.

I have no idea what a kmp extension file is though in all honesty, never heard of it - at least not as the extension for a video file.

 

[honeyxp]

It is honestly a very very old (& very basic) form of copy protection , its very easy to introduce a fake TOC (changing the shown file size) which makes copying the files not impossible at all but really not worth the hassle.

I have no idea what a kmp extension file is though in all honesty, never heard of it - at least not as the extension for a video file.

They're labled as KMP because the default player is The KMPlayer and nothing else out there... I have to google to see how to make these kinds of DVDs. But, if it's not wise to copy these DVDs, there might be some people having enough storage to copy out these DVDs protected in this way... But as I said before, by the way it's so interesting to me...

 

[madmatt30]

So they're just vob files ??

http://dvdshrink.org

 

[honeyxp]

Ita a fake TOC to stop copying , some as that.

TOC here, means Table Of Contents? How to do this?

So they're just vob files ??

http://dvdshrink.org

Yes they are.