JRip2.exe - DVDImageRipper 2.1 (Console Version)

[junq]

To: Users of JRip.exe or former version of DVDImageRipper

JRip2.exe was uploaded to the following URL:

http://www.multiupload.com/I0AITDXN3L [### OBSOLETE: please refer to the new URL within this thread. ###]

JRip2.exe has some additional options, but the core of JRip.exe remain unchanged.

Please try JRip2.exe.

junq

PS: The GUI of DVDImageRipper is still under modification.

[b66pak]

thanks a lot...
_

[junq]

Hi p66pak

thanks a lot...
_

You are quite welcome.
Thanks for using the tool.

junq

[xtcy]

hi junq, nice to hear from you !

thank you again for your excellent software !

best regards,
xtcy

[junq]

Hi xtcy

Glad to hear from you too!

Thanks for using this tool, again.

junq

[junq]

Link to JRip2.exe to the following URL:

http://www.multiupload.com/PVHWIXJWZ9 (#### OBSOLETE, due to a bug, please refer to the new URL within this thread. ####)

Sorry for inconvenience.

junq

[manolito]

Hi junq,

thank you very much for this nice little tool...:thanks:

So far I tested versions 1.9 (GUI version) and 2.0 and 2.1 (CLI versions).
It takes too long to rip especially those DVDs having false sectors, because JRip or 1.9 daringly attempts to read deliberately provided false sectors and replaces those sectors with readable dummy sectors if it founds them, resulting in making structurally the same DVD as the original.

It's true, even though version 1.9 takes some time to rip DVDs with false sectors, the resulting DVD structure is flawless. And at least on my machine MakeMKV takes just as long.

Versions 2.0 and 2.1 have a much higher speed when ripping DVDs with false sectors, but unfortunately the resulting ISO is problematic. DVDShrink cannot open ISOs produced by JRip2, I always get an error message about an invalid navigation structure. And some player software also does not play the resulting DVD correctly.

On my machine I have no problems with VLC, but PowerDVD simply ignores clicks on some menu entries. My standalone DVD player (Mediatek chipset) plays the ripped DVDs correctly.

So it looks like JRip2 does not create a correct navigation structure right now.


Cheers
manolito


//Update//
I just tried to fix the ISO created by JRip2 with FixVTS, and this was successful. Extract the ISO to your HDD, run FixVTS on it, make a new ISO from this. This time DVDShrink accepts the ISO, and PowerDVD also behaves correctly. But of course it would be much nicer if JRip2 could create a correct DVD structure in the first place...

[junq]

to monolito,

Thank you for your advice.

I should say that ripping, modifying, transcoding, and playing contents in DVDs are quite different behaviors.

Creating an ISO image file and burning it on an writable DVD media is the major purpose of these tools.
I'm sure that most commercially available players (not software) can normally play DVDs burned with JRip2 and DVDImageRipper-ripped ISO file.

JRip2 and DVDImaggeRipper do not alter anything in original IFO files; they only rip CSS-encrypted and/or location faked VOBS.

(Simple in terms of literal expression, but decryption of VOBS in such DVDs is quite complicated if you consider navigation.)

Ripped ISO files include exactly the same as the original IFOs since they are not encrypted regardles of whether they contain deliberate false navigation info.
Every tool that may cause errors with an ISO file ripped by JRip2, therfore, gets trapped !!

To keep the whole sector structure original, JRip2 and DVDImageRipper simply replace false (hard-to-read) sectors (in VOBs) with dummy (readable) sectors.
If you try to read the dummy sectors, errors or MPEG block noise may occur, because the dummy sectors contain false data including time stamps and other information.

IFO files in tricky DVSs navigate with dexterity by circumventing (skip) false sectors.
But if you try to directly and sequentially read contents in VOB files having false sectors, it may result in navigation or some other errors.
Some ripping / transcoding tools, which make attempts to modify navigation or to copy entire VOB into VIDEO_TS folder in HDD, may cause errors.

I know that many commercially available and expensive software tools have not yet solved this.

junq

[manolito]

Thanks for the detailed explanation.

But there is still one thing which I do not understand. An ISO created by DVDImageRipper 1.9 should be identical to an ISO created by JRip2, right? But they are not. The ISO from V. 1.9 works perfectly (and can be opened by DVDShrink), while the ISO made by JRip2 does not work correctly and cannot be opened by DVDShrink.

So V. 1.9 must do something right while V. 2.1 does it wrong. Maybe you could analyze what you had changed between these versions...


Cheers
manolito

[junq]

to manolito

Thank you for what you point out.
I have to connfess to the fact that there must be a slight difference between the ISOs.

Small the size, but the source codes of these tools exceed ten thousand lines.
There must be bugs in them.

I'll check it.

junq

[b66pak]

v1.9 and v2.1 should produce same iso size with same crc (md5)...
_

[manolito]

v1.9 and v2.1 should produce same iso size with same crc (md5)...
_
They should, but they don't. Have you tried it yourself?


Cheers
manolito

[junq]

to manolito,

Thanks to your advice, a bug was found in JRip....exe.
I fiexed it.

Then I removed the former JRip..exe from their URLs, and uploaded JRip21.zip to the following URL:

http://www.multiupload.com/PP44W7F6NH

Please try Jrip21.exe.
(Ripping a DVD is quite time-consuming task though. But we won't know how it works until we know the solution.)

Sorry for inconvenience.

junq

[junq]

Hi b66pak

Thank you for your post.
Depending on the scheme of fake, decrypted image is or is not successfully created.

Please be reported that the bug I found recently will adversely affect DVD navigation of certain faked DVDs.

junq

[junq]

To all,

Because of a bug, former versions of JRip... were removed.
Download link to JRip21.zip is the following URL (new name of the executable: JRip21.exe):

http://www.multiupload.com/PP44W7F6NH

Thanks for using this tool.

junq

[manolito]

Thanks for the new version, this was a very quick reaction...:D

I just tested it with three different DVDs, and these are the results:

Big improvement, now DVDShrink can open the resulting ISO files.
But I still get serious navigation problems with the new version. On one DVD some menu entries do not give me any reaction, on another DVD the main menu is only partially visible. And two of my test ISO files crashed the VLC player.

I tested the ISO files by mounting them with VirtualCloneDrive and feeding them to different software players. One of the ISO files was small enough to fit on a DVD5 blank, so I burned this ISO to a DVD blank. When I played this DVD through software players, the result was identical to the mounted ISO. Surprisingly my standalone DVD player had no problems.


So I think you still got some work ahead of you. Maybe some more testers are needed...


Cheers
manolito

[setarip_old]

@manolito Surprisingly my standalone DVD player had no problems.Not really too surprising. That would tend to indicate that your standalone player is fully compliant (or, at least, more compliant) with DVD standards - which may not be the case with your selection of software players. Such anomalies/inconsistencies are frequently observed in the world of Blu-ray playback.

As a sidenote - I've observed that if a software player doesn't playback properly, it is sometimes beneficial to reboot before once again trying to use ANY software player on your system to playback the DVD you are testing...

[manolito]

@setarip_old

Well, so far I always have learned that software players do play just about anything while only a standalone player is a reliable test platform for your DVDs (or BlueRays).

My software players are all well known to be quite reliable (PowerDVD, VLC, MPC-HC and WMP). And I do know that rebooting is beneficial after experiencing problems.

But the results for JRip21 are pretty consistent, there sure are some navigation problems. I wonder if there is any free (or cheap) software which can analyze such problems.

Anyways, you are the man who has a lot of experience when it comes to ripping protected DVDs. Would you be willing to test JRip with some of your DVDs?


Cheers
manolito

[junq]

Hi manolito,

Unfortunately I have no way to check your DVD.
The BUG was fixed because it was clear, from your report, that the problem was due to my program, not the DVD itself.

Please do not expect too much from my small tool.
I cannot play cat-and-mouse game (or vicious circle) against DVDs available overseas.

junq

[b66pak]

@manolito now v1.9 and v2.1 are producing the same size iso's? (how about crc or md5?)
_

[manolito]

@manolito now v1.9 and v2.1 are producing the same size iso's? (how about crc or md5?)
_
I haven't really checked, because both versions mess up the menus on some DVDs. And FixVTS cannot repair it. When a new version appears I will certainly test it, but for now I am going back to the usual suspects (AnyDVD, DVDFab, RipItForMe, MakeMKV, even DVD43 in conjunction with VobBlanker 2.1.2.0)


Cheers
manolito

[junq]

Message from junq

Before posting message, please keep public manner and etiquette.

Ten-meter runners tend to readily misunderstand themselves as if they have finished 40 km run.

Real 40 km-runners are handling risks.

junq