85 GB files on DVD
loustalou
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ziggourat Posted messages 24653 Registration date Status Contributeur Last intervention -
ziggourat Posted messages 24653 Registration date Status Contributeur Last intervention -
Hello
can someone explain to me why on commercially purchased movie DVDs the VIDEO_TS folders sometimes display enormous sizes (87 GB recently) while the disc shows a capacity of 8.5 GB? I suspect it's a form of copy protection but I don't understand how it works.
Thank you
can someone explain to me why on commercially purchased movie DVDs the VIDEO_TS folders sometimes display enormous sizes (87 GB recently) while the disc shows a capacity of 8.5 GB? I suspect it's a form of copy protection but I don't understand how it works.
Thank you
10 réponses
Hi loustalou,
Impossible. Every DVD contains 2 folders: VIDEO_TS and AUDIO_TS. That's all you'll see if you edit a DVD with ifoedit for example.
Inside VIDEO_TS, you'll see video files that are split into equal durations except for the last one which will be shorter.
Knowing that a DVD has a capacity of 7.4 Go it is impossible to have a volume of 87 Go.
Unless I didn’t understand your question.
Best regards.
--
Happiness is the only thing that can be given without having it.
Impossible. Every DVD contains 2 folders: VIDEO_TS and AUDIO_TS. That's all you'll see if you edit a DVD with ifoedit for example.
Inside VIDEO_TS, you'll see video files that are split into equal durations except for the last one which will be shorter.
Knowing that a DVD has a capacity of 7.4 Go it is impossible to have a volume of 87 Go.
Unless I didn’t understand your question.
Best regards.
--
Happiness is the only thing that can be given without having it.
Hi Txiki
Thank you for your response.
Let me recap: This is a DVD purchased from a store. It claims to have a capacity of 8.5 GB, but when I read the information in the video-TS folder, it shows a volume of 87 GB. Of course, that's not possible, which is why I suspect some files may be artificially "inflated." I just heard about illegal TOC. Could that be what it is?
Thank you.
Thank you for your response.
Let me recap: This is a DVD purchased from a store. It claims to have a capacity of 8.5 GB, but when I read the information in the video-TS folder, it shows a volume of 87 GB. Of course, that's not possible, which is why I suspect some files may be artificially "inflated." I just heard about illegal TOC. Could that be what it is?
Thank you.
Hello
"I suspect a fake "inflation"": Impossible! Physically, as you know, a DVD has a capacity of (8.5 GB?) 7.4 GB except for Blu Ray which has double that.
"It states a capacity of 8.5 GB": Where do you see that? Write on the DVD or by right-clicking/properties?
"but when I read the information from the video-TS folder, it shows a volume of 87 GB": by right-clicking/properties I assume?
What type of DVD is it? Game? Movie? Software? Where did you buy it? Your story is unclear.
VIDEO_TS and AUDIO_TS is the DVD structure. AUDIO_TS for foreign languages because on a DVD you can choose the language for playback.
PS: in any case, 85 GB is enoooormous!
If the issue is resolved, don’t forget:
1: to report it using the
2: to also specify how this problem was solved, it will help others.
Thank you in advance!
--
Happiness is the only thing that can be given without having it.
"I suspect a fake "inflation"": Impossible! Physically, as you know, a DVD has a capacity of (8.5 GB?) 7.4 GB except for Blu Ray which has double that.
"It states a capacity of 8.5 GB": Where do you see that? Write on the DVD or by right-clicking/properties?
"but when I read the information from the video-TS folder, it shows a volume of 87 GB": by right-clicking/properties I assume?
What type of DVD is it? Game? Movie? Software? Where did you buy it? Your story is unclear.
VIDEO_TS and AUDIO_TS is the DVD structure. AUDIO_TS for foreign languages because on a DVD you can choose the language for playback.
PS: in any case, 85 GB is enoooormous!
If the issue is resolved, don’t forget:
1: to report it using the
●●●on the first question.
2: to also specify how this problem was solved, it will help others.
Thank you in advance!
--
Happiness is the only thing that can be given without having it.
Hello,
Commercial DVDs are pressed, not burnt, which may explain why their capacity sometimes exceeds that of standard or DL blank DVDs, but to reach 85 GB is a rather unattainable gap!
Theoretically, the maximum capacity of a DVD is that of the DVD-18, which is double-layered on both sides and holds 17 GB, but I've never seen one in stores: https://fr.wikipedia.org/wiki/DVD#Capacit%C3%A9_de_stockage
Personally, I've seen DVDs burned on a standalone recorder (DVD_VR); where the size of the VIDEO_TS directory exceeds the theoretical capacity once extracted, which I can't explain:
If it's Blu-ray, I believe the maximum capacity is 128 GB, but that's to be verified: http://www.hughsnews.ca/faqs/authoritative-blu-ray-disc-bd-faq/9-disc-capacity
Finally, I would say that since these are commercial DVDs (where do they come from?), if they are readable on your standalone player or elsewhere, then why question their weight (size)?
Best regards
--
Long live Bobo! ~ Little fish will become big ~
Commercial DVDs are pressed, not burnt, which may explain why their capacity sometimes exceeds that of standard or DL blank DVDs, but to reach 85 GB is a rather unattainable gap!
Theoretically, the maximum capacity of a DVD is that of the DVD-18, which is double-layered on both sides and holds 17 GB, but I've never seen one in stores: https://fr.wikipedia.org/wiki/DVD#Capacit%C3%A9_de_stockage
Personally, I've seen DVDs burned on a standalone recorder (DVD_VR); where the size of the VIDEO_TS directory exceeds the theoretical capacity once extracted, which I can't explain:
If it's Blu-ray, I believe the maximum capacity is 128 GB, but that's to be verified: http://www.hughsnews.ca/faqs/authoritative-blu-ray-disc-bd-faq/9-disc-capacity
Finally, I would say that since these are commercial DVDs (where do they come from?), if they are readable on your standalone player or elsewhere, then why question their weight (size)?
Best regards
--
Long live Bobo! ~ Little fish will become big ~
Hello everyone and thank you for taking the time to respond to me. I know the capacity of a DVD, and I understand that 87GB is huge, but that's what the folder indicates (yes, by right-clicking, getting info - on a Mac). Are you familiar with illegal TOC? It's apparently a technique to make files appear larger than they actually are. Have you heard of that?
Thank you
Thank you
Hello everyone,
▶ loustalou: "it's apparently a technique to make files appear larger than they actually are" : Yes! it's a technique to make the user believe they are actually downloading a movie or video.
Best regards!
--
Happiness is the only thing you can give without having it.
▶ loustalou: "it's apparently a technique to make files appear larger than they actually are" : Yes! it's a technique to make the user believe they are actually downloading a movie or video.
Best regards!
--
Happiness is the only thing you can give without having it.
Thank you Txiki,
and do you know where I could find information on how this technique works, the tools it uses, etc.?
best regards
and do you know where I could find information on how this technique works, the tools it uses, etc.?
best regards
Hi loustalou,
This is a technique used by providers of movies, software, etc. that are paid but that we try to download through another process (sites offering these same "supposedly paid" items and that they offer "for free" but in reality you have to pay for them in another way because these contents are not free of rights or are in "shareware" (or shareware if you prefer). It is actually a matter of rental.
Best regards!
This is a technique used by providers of movies, software, etc. that are paid but that we try to download through another process (sites offering these same "supposedly paid" items and that they offer "for free" but in reality you have to pay for them in another way because these contents are not free of rights or are in "shareware" (or shareware if you prefer). It is actually a matter of rental.
Best regards!
Hello loustalou,
You're welcome!
If the problem is resolved, don't forget:
1: to report it by using the
2: to also specify how this problem was solved, it will help others.
Thank you in advance!
--
Happiness is the only thing that can be given without having it.
You're welcome!
If the problem is resolved, don't forget:
1: to report it by using the
●●●on the first question.
2: to also specify how this problem was solved, it will help others.
Thank you in advance!
--
Happiness is the only thing that can be given without having it.
There is no TOC on DVD-Video (it is the Video Manager or VMG that manages the disk) to my knowledge because they are structured differently, but the TOC could apply to other DVDs (for Digital Versatile Disc; in French, Disque numérique polyvalent, also named Digital Video Disc) in the Lead-in Area:
- https://www.commentcamarche.net/contents/741-dvd-dvd-audio-et-dvd-rom-dvd-r-dvd-rw-dvd-w-dvd-rw#structure-logique
- https://www.isobuster.com/fr/help/330
So I don't see what this anti-copy technique would have to do with DVDs bought in stores because, unless I'm mistaken, these discs are DVD-Video structured like this:
A Title corresponds to a chapter to simplify in complex menus.
However, this old topic indicates otherwise, so what I wrote above may be wrong! : https://forum.ubuntu-fr.org/viewtopic.php?id=308938
The illegal TOC mainly concerned Audio CDs but this anti-copy technique was quickly abandoned:
- https://fr.wikipedia.org/wiki/TOC_ill%C3%A9gale
- https://www.cdmediaworld.com/hardware/cdrom/cd_protections_illegal_toc.shtml
But not only, because the illegal TOC (in English) could concern games like Tom Raider III, explanation in English of the method used to protect the CD: https://inxs8.tripod.com/illegal_toc.htm
See also: https://www.gameburnworld.com/protections_illegal_toc.shtml
Google translation: "This CD copy protection is increasingly used to prevent CD burner users from copying games, particularly on Playstation. The fake table of contents works by giving false information about the size of an original CD. Every CD has a table of contents (TOC) that describes the exact size, location, and a filename of each file on the CD. When a game or software company edits the CD, they can make the CD report that the size is much larger than it actually is. Then, when a CD copying program tries to read the CD, the CD reports that it far exceeds the standard CD size of 650MB, sometimes reporting more than several gigabytes."
To learn more about the TOC but it's in English: http://www.herongyang.com/CD-DVD/CD-TOC-Where-Is-Located.html
And if you want, you can also research with the keyword ReadTOC for example.
Good continuation,
Tchao
--
Long live Bobo! ~ Little fish will grow big ~
- https://www.commentcamarche.net/contents/741-dvd-dvd-audio-et-dvd-rom-dvd-r-dvd-rw-dvd-w-dvd-rw#structure-logique
- https://www.isobuster.com/fr/help/330
So I don't see what this anti-copy technique would have to do with DVDs bought in stores because, unless I'm mistaken, these discs are DVD-Video structured like this:
- simply:
- structure of the VIDEO_TS directory, the AUDIO_TS being always empty:
- explanation in English of the elements:
A Title corresponds to a chapter to simplify in complex menus.
However, this old topic indicates otherwise, so what I wrote above may be wrong! : https://forum.ubuntu-fr.org/viewtopic.php?id=308938
The illegal TOC mainly concerned Audio CDs but this anti-copy technique was quickly abandoned:
- https://fr.wikipedia.org/wiki/TOC_ill%C3%A9gale
- https://www.cdmediaworld.com/hardware/cdrom/cd_protections_illegal_toc.shtml
But not only, because the illegal TOC (in English) could concern games like Tom Raider III, explanation in English of the method used to protect the CD: https://inxs8.tripod.com/illegal_toc.htm
See also: https://www.gameburnworld.com/protections_illegal_toc.shtml
Google translation: "This CD copy protection is increasingly used to prevent CD burner users from copying games, particularly on Playstation. The fake table of contents works by giving false information about the size of an original CD. Every CD has a table of contents (TOC) that describes the exact size, location, and a filename of each file on the CD. When a game or software company edits the CD, they can make the CD report that the size is much larger than it actually is. Then, when a CD copying program tries to read the CD, the CD reports that it far exceeds the standard CD size of 650MB, sometimes reporting more than several gigabytes."
To learn more about the TOC but it's in English: http://www.herongyang.com/CD-DVD/CD-TOC-Where-Is-Located.html
And if you want, you can also research with the keyword ReadTOC for example.
Good continuation,
Tchao
--
Long live Bobo! ~ Little fish will grow big ~