Guide for keeping the main movie using IFO mode

[malou]

Is there a guide out there that shows how to keep the main movie only using the IFO mode when ripping with DVDDecrypter?

Thanks so much!

[Alan G]

I would like to see the same thing:)

[?¿öM¿?]

http://www.doom9.org/dvddec.htm

[malou]

Thanks but I've seen that. It's very informative, but we're kinda spoiled by all the great step-by-step guides on doom9!

[malou]

anyone?
thanks!

[Alan G]

The more I read the more confusing it gets. This is definetly not for the simple minded. I feel Im very technical but I am not a PC nerd and this stuff is very confusing. I started to read about the structure of a dvd and it talked about using somer old program to see whats in the dvd. Just please break down the dvd without explaining some program thats outdated to do so.

Whats the difference between IFO and ISO and do I rip in read or write. One guy tells me to rip in IFO and another says ISO and you ned another to use after that. But along with this helpfull information is no explaination. I guess Im suppose to know this stuff. Reading all this is very contradicting and confusing. I also wish there was some simple writting somewhere keeping in mind some of us are beginners.

[Alan G]

At this point Im willing to pay someone for 20 minutes of their time on the phone going through some of this. Far more productive.
Any takers?

Thanks!!

[TheWEF]

a so called ISO-image is a file on your harddisk that contains the complete content of a cd or dvd.

with certain software (like demontools) it's possible to simulate an additional (virtual) DVD-drive. you get another drive in explorer that's not physically connected to your computer. "mounting an ISO-image" is like putting a virtual DVD in a virtual DVD-drive. you can play this dvd with your software-dvd-player just like a real disk in a real drive.

to get the ISO-image to your harddisk you have to rip the dvd with dvddecrypter in "ISO-mode". this is ripping the complete dvd, you can even burn this (decrypted) image onto a DVD-R (if you have a DVD-burner) and get a non-encrypted copy of your dvd.

in "File-mode" you can also copy the complete dvd or copy a custom selection of files. instead of an image (= one big file, only accessable with special software) you get all the files on the dvd transfered and decrypted to harddisk in a folder you choose.
disadvantage is that you might not be able to play the dvd (with full menu functionality) from harddisk with any software dvd-player.

and now the most important part: if you want to encode a movie to divx there is more you have to do than just decrypt and copy the files to your harddisk!!!

to understand "IFO-mode", the only one relevant for encoding, you have to know a little about the filestructure on a DVD.

all the files are in a subfolder called "VIDEO_TS". there can be other files/folders on a DVD (like "AUDIO_TS"), but they are irrelevant for us and can not be "seen" by a normal standalone DVD-player.

3 types of files can be found in a VIDEO_TS folder:
*.VOB files (Video OBject) contain all video, audio, subtitle and picture data.
*.IFO files (InFO) contain information HOW the data in the vobs has to be played.
*.BUP files (BackUP) are just a copy if the ifo-files.

many vobs contain multiple program chains (like normal cut - directors cut, alternate ending,...) or varios angles.
if you just copy such a vob to your harddisk and play it without the information from the ifo-file you see a big mess like repeating scenes , menu content or other unwanted stuff.
to prevent this you rip in "IFO-mode": dvddecrypter parses the ifo-file, reads, decrypts and creates NEW vobs that contain ONLY THE PROGRAM CHAIN (PGC) you selected.

note that many dvds just have 1 PGC and 1 angle - in that case File-mode and IFO-mode do the same thing.

then you have to use dvd2avi to index these (new) vobs and save a d2v-project file... (and so on).

wef.

[Alan G]

Thanks WEF

This helps alot.

I want to burn a DVD to hard drive and then burn a copy using my Pioneer dvd burner.
So I realize I need to scrap as much as possible of the original to fit this on the destined disc which can only hold 4 something gigs while the original dvd may be 20 something gigs.

To pull this off do I need to compress the movie into a divx format.
I dont want to loose quality so Im sure I want to avoid this.

Can I eliminate the IFO files to save space or will the player not know how to play the movie with those files gone. I guess the better question is of all the files what are basic essential files needed for proper playback and what is the sugested easiest mode used for this.

[TheWEF]

Originally posted by Alan G
I want to burn a DVD to hard drive and then burn a copy using my Pioneer dvd burner. So I realize I need to scrap as much as possible of the original to fit this on the destined disc which can only hold 4 something gigs while the original dvd may be 20 something gigs.

no offence, but you seem to be a real newbie and what you are trying to do is pretty advanced, almost experimental stuff. nobody can talk you through this.

if you want to create a copy that can be played on a computer i recommend you follow doom9's gknot guide and go for divx5.

if you want a copy you can play on a standalone i recommend dvd2svcd.

with both methods, if you do it right, you will not see much difference to dvd-quality.

later you can try the above mentioned.

good luck and have fun!

wef.

[malou]

WEF,

Do you know if there is a guide out there that shows how to keep the main movie only using the IFO mode when ripping with DVDDecrypter? The File method has been working for me but I was told (by Lightning) that for multiangle movies that I should use the IFO mode.

Thanks!

[TheWEF]

c'mon, here is the guide:

insert the dvd.
start dvddecrypter.
select IFO mode (press I).
(PGC is selected automatically).
select a destination folder.
press the green arrow.
wait.

want me to come over and press the buttons for you? ;)

wef.

[malou]

when you have multiangles some of the IDs are on both angles, if I uncheck an ID on one of the angles would the ID be totally gone or only the part that belongs to that angle?

[malou]

how different is the results when using IFO mode vs. using File mode when extracting multiangles?

[malou]

how about the settings when specially when you want to do stream processing?

[Alan G]

I know it must be frustrating to those all ready in the know to keep getting these newby questions.

Thanks for putting up with us.

[TheWEF]

Originally posted by malou
how different is the results when using IFO mode vs. using File mode when extracting multiangles?

depends.

the cells are the smallest entities in a vob.
a simplified example:
let's say you have 10 cells in a vob, 3 program chains:

in each PGC the cells have to be played in a certain order:

PGC 1 e.g. only has one angle, cell order could be:

3 5 7 (could be deleted scenes...)


PGC 2 has 2 angles:

angle 1: 1 2 4 6 8 9
angle 2: 1 2 4 6 8 10

thats the main movie, angle 1 has english credits (cell 9), angle 2 has french credits (cell 10).
cell 9 and 10 have the same legth, you can switch back and forth between the two while watching the DVD.
two angles in the same PGC always have the same lenght.

PGC 3 is the main movie WITH deleted scenes and has 2 angles as well:

angle 1: 1 2 3 4 5 6 7 8 9
angle 2: 1 2 3 4 5 6 7 8 10

in this case, if you rip in File-mode, you get:

1 2 3 4 5 6 7 8 9 10 (= movie with deleted scenes and double credits).


in another dvd you could find a PGC with 3 angles like this:

angle 1: 1 4 7 10
angle 2: 2 5 8 11
angle 3: 3 6 9 12

here all 3 angles are completely different.

ripping in File-mode you would get

1 2 3 4 5 6 7 8 9 10 11 12 (= each scene repeated 3 times from a different angle).

but dvddecrypter takes care of that for you, you do NOT have to manually select or deselect cells. just follow my "guide" and you are fine.

wef.

[malou]

Wef,

Thanks for the detailed explanation, let me tell you what I normally do.

1. DVDDec, FILE mode, to rip the files, enable multiangle processing to keep an angle if needed.
2. I use VOBator to determine which IDs to keep
3. finish the process via IFOedit.

I’ve also ripped everything with FILE mode then used IFO edit to retain one angle. But as far as I remember one result was better than the other, I just don’t remember (see my other post here on this same page). I wanted to know which procedure was used by others but I never found out.

Correct me if I am wrong, is the reason why Lightning told me (also on that post) to use IFO mode is so that I don’t have to use IFOedit? It looks like DVDDec IFO mode does a lot of things that IFOEdit does. Or do I still have to “get VTS…” in IFOEdit.

PS: I either do an ISO back-up or just keep the main movie. Maybe later on when I am more proficient I can select the other extras too when space on the DVD-R allows or just even cut out the 4:3 version and keep the rest.

Last question, if I followed the steps you outlined above, does that leave only the main movie? And is that ready to burn? No need to pass through IFOedit or something?

Thanks again!

[TheWEF]

malou & Alan G:

i had no idea that you both want to create a dvd from a dvd, nowhere in the beginning of this thread did you mention that.

i'm not an expert for that AND this is the wrong forum. my general recommendation for IFO-mode was meant for ENCODING the video. in your case it does not have to be the right method, depending on what you want to achieve.

once again i can only tell you that this is not the easiest thing to start with. first of all you have to read (and understand) ALL the documents on this (http://www.doom9.org/mpg/dvdr-guides.htm) page, do a lot trial and error and after reading a lot in these (http://forum.doom9.org/forumdisplay.php?s=&forumid=49) forums you are allowed to post more questions there... ;)

wef.

[malou]

Guide for keeping the main movie using IFO mode
Is there a guide out there that shows how to keep the main movie only using the IFO mode when ripping with DVDDecrypter?

Thanks so much!

*******************
This is the original post, sorry if I was not clear. I did go through the guides on the page that you are talking about but (I think) none of them refers to keeping the main movie using the IFO mode. Can you direct me to one? Help us out with one?

Thanks again.

[ookzDVD]

I think they want "playable" folder after ripping the DVD in the
IFO mode. The WinDVD wouldn't play the folder created by DVDCrypter
in the IFO mode, it can be played one by one per .VOB, which mean
the subtitle info, audio info is missing.

_but_ if rip DVD in the File mode and grab all the files,
the WinDVD can play the folder and the menu, subtitle, etc is
working well.

I think we need to create new special IFO file for the .VOB
which ripped use IFO mode.

PS. Ripping in the ISO mode also can make playable copy, but
the Daemon tools still have bug for DVD image :(