DVDDecrypter Demux Question

[daveburns]

When I use DVDDecrypter and try to demux a chapter (music video), I get only the m2v file, and a vob file. I'm trying to get the m2v file and an ac3 or LPCM file(based on whatever's on the DVD).

I have tried every check mark combo I can think of.

Any ideas?

[TCM]

hi,

i guess you set "demux" by right clicking on a stream. the setting is only valid for the currently selected stream. if you just right click on another stream than what is currently selected, your setting will only affect the selected stream. try to explicitly select the stream and watch the checkboxes or set "set all - demux" via right click.

TCM

[Kaname]

I have a similar question:

I am trying to rip the ac3 audio stream from a concert DVD I have. Except I don't want all chapters. Just selected chapters.

Example: Chapter 1,5,8,11,22 etc.

Is there a way using SmartRipper or DVD Decryptor to rip these chapter ac3 streams into individual ac3 files so I can batch convert them into stereo wavs for listening in the car? Right now all I can do is get them as one fat ac3 stream.

The ac3 streams are Dolby 2ch.

[Justinus]

Then, just rip it normally but select the chapters you want. This would give you VOB files. Then, use BeSweet to transcode into WAV files.

[Kaname]

Originally posted by Justinus
Then, just rip it normally but select the chapters you want. This would give you VOB files. Then, use BeSweet to transcode into WAV files.

I tried that. But instead of one fat ac3 track, I get one fat wav file. I was hoping to get individual wav files thus gain the ability to put them as separate CD tracks; not one huge track.

Thanks for the help though.


PS: Nice Love Hina icon. :)

[Justinus]

You better select to rip separately as chapter as well. I think you can adjust whether it'd become one output fatty file or several small files in the ripper's preference.

If you're using DVD Decrypter, you may want to try using File Mode here (http://www.doom9.org/dvddec-options.htm).

If you're using Smartripper, there's an option to split into each chapter or even a cell here (http://www.doom9.org/smartripper2.htm).

BTW thanks for your compliment.

[Kaname]

Originally posted by Justinus
You better select to rip separately as chapter as well. I think you can adjust whether it'd become one output fatty file or several small files in the ripper's preference.

If you're using DVD Decrypter, you may want to try using File Mode here (http://www.doom9.org/dvddec-options.htm).

If you're using Smartripper, there's an option to split into each chapter or even a cell here (http://www.doom9.org/smartripper2.htm).

BTW thanks for your compliment.

Got it to work. All I had to do is select split files by chapter in SmartRipper and I'm home free. Had to pay attention to the filenaming scheme but it's no biggie :) - beats running the rip process 27 times haha.

Thanks again! :D

[Justinus]

No worry. I'd be glad to help :D

[ellrick]

I'm interested in getting back to Dave's original question. Did he solve it? I too get a VOB file instead of an audio file, and that happens whether I select Demux or not. In fact I get all the same files regardless of whether I select "Direct Stream Copy" or "Demux". However, I did discover that the VOB really does contain the audio data, and if I rename it something.WAV I can use it. (It's a few bytes bigger than the original WAV file I created the DVD from - I don't know what the difference is.) In fact, if I don't enable Stream Processing, it appears to be possible to rename the resulting single VOB file something.mp2 and treat it as a multiplexed MPEG-2 file (i.e. import it back into DVD authoring software that doesn't accept VOB files). Is this the way I'm supposed to do it - change the extension of the files to what I suspect the format is? (In my case I am working with DVDs I created from original content, so I know what the video and audio streams were originally.) It seems weird to rename files like that - I look forward to comments from more experienced folks.

[LIGHTNING UK!]

The demux, direct stream copy, raw ripping methods are on a PER STREAM basis. You dont just hit it once and expect it to do it for all of them. You might highlight each stream in turn within the stream processing box and hit the appropriate radio button.

Of course you could just right click and use the options on the context menu!!

btw, DVD Decrypter can also split by chapter, vob id, cell id etc. You only have to look in the settings :)

[ellrick]

You might highlight each stream in turn within the stream processing box and hit the appropriate radio button.
During my test I was only doing one simple stream, and that's how I did it - selected a stream in the stream processing box, enabled stream processing (checkbox), and chose the radio button I wanted to try. Are you saying that if everything is working correctly (i.e. I know what I'm doing ;) ), selecting Demux should give me a .M2V file and a .WAV file, rather than requiring me to change the file extension afterward?

[LIGHTNING UK!]

No, you'll never get a wav file.
If you highlight the video stream and hit demux you'll get an M2V file.
If you then highlight an audio stream (AC3) and hit the demux radiobutton you'll get an AC3 file. If you dont do that, you'll get an M2V file and a VOB file (because by default, they're all set to 'direct stream copy').

[ellrick]

In my case I'm trying to restore audio that was originally .WAV (I would love to use Dolby Digital to save some space, but as far as I know I don't have an encoder for it), so I will never get an AC3 file either. I did discover what you meant, though - one "stream" is either the video or the audio, not simply one VOB as I originally thought. This time I selected Demux for both, and it made a file with a .PCM extension. However, although it is the same size as the original WAV it apparently does not contain the same data, because when I try to use it in DVDit, the program complains that it can't play my M2V file (there is nothing wrong with the M2V per se, but apparently if it has weird audio with it, the program can't tell which file to complain about, I guess). And renaming it to .WAV doesn't help. So even though that should get me closest to my original files, it messes up and becomes unusable. :(

But strangely, if I select Direct Stream Copy for the audio and rename the resulting VOB (which is slightly larger than my original WAV file) to .WAV, DVDit accepts it and it seems to work fine. Also selecting Direct Stream Processing for both video and audio and renaming the resulting file to .MP2 seems to work (in fact it's kinda handy as a single file :) ). If I disable Stream Processing altogether, I get a file that is the exact same size as with Direct Stream Processing (slightly bigger than my original file sizes added together) and after renaming, it also runs in DVDit, but at least in DVDit's preview mode (I haven't tried burning any of these test files) at the end of playing it flashes junk on the screen for a split second, so there is definitely a difference in the files.

Does anyone know what the difference in actual data is between Direct Stream Copy and Demux for an audio file, and between Stream Processing enabled (Direct Stream) and disabled for a combined file?