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  1. Member
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    I am trying to copy my Nemo DVD so that my son can view it on his PSP. I am using DVD decryptor and PSP Video 9 (uses Avisynth). In this two stage process, the DVD is ripped by DVD decryptor into a single VOB with single audoi soundtrack - this VOB is then converted to an MP4 by PSP Video 9.

    Problem - With Nemo DVD - when I use DVD decryptor to decode - I get the directors commentary overlayed over the film audio. I am in IFO mode (with file splitting set to "none" - I only want a single VOB) and using audio streams - only selecting the main audio stream and video (using direct copy) - but, for some reason, the director's comments audio stream is also being added ??

    I do not need DVD shrink - I only want a single MPEG2 VOB - I have read several articles about ripping Nemo DVD's to DVD's - but I just want to encode a single film VOB - no menus, no angles, no subtitles - you get the picture !
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  2. Mod Neophyte redwudz's Avatar
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    It sounds like the simple answer is that you are selecting the wrong audio stream. Have you tried a different one?



    Usually the first 5.1 audio listed is the proper one and the Directors commentary comes further down the list.
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    Sorry to disappoint you, but on the selcted PGC (1:40 main film) - there is only really one option - the main English AC3 audio track - the others are subtitiles. This works with most of the other DVD's I have created (usually, you can see a separate director's commentary track) - but on Nemo - it is different. It is almost as if they have muxed the directors and main audio on the same stream - Any ideas ? Or maybe I am missing something ?

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    A retail DVD doesn't always follow the conventions you're used to -- it's sometimes hard to isolate a section of audio you want. While I know you posted you don't want/need shrink, this is actually one of the feats it excells at. Create or author a new DVD using 100% quality, zero compression, and you'll get a set of vobs containing just what you want for the title you want. Then proceed with your normal workflow from there, working on your new DVD layout.
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    Many thanks - but won't I still have the same problem ? Most of the posts I read, start by using DVD decryptor - then move on to DVD Shrink or something similar. If DVD decrytor is not decrypting the audio stream correctly - then surely, DVD shrink will not help.

    To be honest, if I have to run the DVD through DVD decryptor, then DVD shrink, then PSP Video 9 (with a dual pass) - the whole process will take about a day just for my son to play a 1hr 40 min film on his PSP which I already own on DVD !!! It does beg the question, why not just watch it on a TV (but my son would probably not see it that way). If this is the easiest way of getting Nemo onto the PSP - then I can understand why people buy UMD films even though they already own the same film on DVD.

    I was hoping that given the amount of posts regarding problems with the Nemo DVD - someone may know a way of getting DVD decryptor to decrypt the main video and audio track to a VOB without getting the director's comentary. Any help would be greatly appreciated.
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    "If DVD decrytor is not decrypting the audio stream correctly - then surely, DVD shrink will not help."

    Personally I use DVDFab Decryptor to get the entire DVD on HD where I can play with it. For Episodes I use Shrink or Recode in re-author mode to create a new layout with just the video/audio I need. Then everything I can do to an original, I can do to the new layout -- in your case I'd imagine PSP Video 9 would work as well as with the output from DVD Decryptor, but that's a guess having never used it.

    Timewise, I've got a modest setup so you'll probably do better, it usually takes 20 - 30 minutes to get DVD on HD, ~ 10 min in shrink or recode to copy vob content.

    Taking a quick look at the PSP Video 9 guide off the download page, I'd guess that significant time is involved re-encoding to mp4 I assume using Q/time. I don't know what the mp4 needs for compatibility, but I'd see if I couldn't create the mp4 using recode - from DVD mpg2, it takes ~ 20 - 30 minutes for a 2 hour movie, and there are options for MAC compatibility -- do know that.

    ANyway, maybe something there will help.
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    Many thanks mikiem - you are correct - the thing which takes the most time, is the translation from MP2 VOB to MP4 using PSP Video 9 (takes over 4 hours for a 1.5 hour film with two passes).

    If recode is faster than PSP video 9, then I will definitely look at it. Can you specify the target resolution/bit rate/audio for the MP4 ?

    I finally cracked the Nero thing - the manufacturers have been very crafty about how they have constructed the DVD. The actual film lasts for 1 hr 40 mins and there is a "making of" which lasts for over 2 hours. The 'making of' points to the video structures from the main film and intersperses them with extra scenes. But when you look at the DVD in IFO mode, the soundtrack you see associated with the 1 hr 40m feature is the commentary from the "making of" and the audio you see on the 2 hour+ making of, is the audio from the main film - very clever. DVD decrytor/DVD shrink in isolation will not help. What you have to do is produce an ISO file from DVD decryptor and save it on your hard disk. Then open this ISO file using DVD shrink and go into author mode and extract the main film and soundtrack - store as a single VOB and then use PSP Video 9 to convert to mpeg 4. Not strightforward, but it did work. Nemo is the only DVD I have found which does this.

    By the way - I did find that DVD shrink downgraded the quality/colours of the original video VOB (even though I specified zero compression). I do not know why.
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  8. Member FulciLives's Avatar
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    Use DVD Decryper in FILE MODE and SELECT ALL FILES and in the preferences make sure you select NO FILE SPLITTING.

    This will give you one single VOB file for the MAIN MOVIE. Run that through DGMPGDec and ask it to also demux the video.

    You will then have a single demuxed video file (with a M2V ext) and multiple audio files. Play the audio files back (using WinDVD or PowerDVD etc.) to find out which one is the real soundtrack (not the commentary).

    This is an "about way" of doing it BUT it will work.

    - John "FulciLives" Coleman
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    "Can you specify the target resolution/bit rate/audio for the MP4 ? "

    Well, I was curious so found this and gave it a shot. http://www.pqdvd.com/psp/video_converter.html There's also some info here: http://www.pqdvd.com/support/psp_settings_video.html

    It seems to use ffmpeg, seems fairly quick (better then realtime, but not as fast as Nero from mpg2) & the basic sizes are 320 x 240, 368 x 208, 400 x 192. Higher quality settings were 798 kbps video at 15 fps, though 30 is supposed to be possible, & 48 bps mono.

    So as a guess, I think I'd start out with something similar in Nero, clicking the checkbox for encoder expert settings, turning off most all options except the MAC compatibility on, and see what happened with the PSP & a test clip.

    Then check out the app above and compare. The free version won't do DVD, but will accept mpg2, avi etc... Enough for a comparison test at least, & worst case, if Nero doesn't work, demuxing from vob, then muxing audio/video to mpg2 it should still work out faster.

    "I did find that DVD shrink downgraded the quality/colours of the original video VOB (even though I specified zero compression). I do not know why."

    I'll have to start paying attention and check it out. Thanks.
    Shrink has some selectable quality enhancements, and is older code then Nero Recode -- perhaps compare the 2?
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    I am my own worst enemy with the mp4 translation using PSP video 9 - I use my own custom template 368x208 with high quality audio and a dual pass (which all takes time). It is quicker using the standard PSP video 9 templates, but not much - it still takes a long time - which is why I was interested in your comments regarding DVD recode and the speed.

    I also cannot understand why all this stuff (particularly mpeg2 --> mpeg4) is done in software - tmpeg, ffmpeg, nero etc etc etc. Surely there must be a cheap firmware solution ? I know that there is a £37 gadget which encodes mpeg2, mpeg 4 and other formats (USB breakout box) - but the inputs/outputs are all analogue - It's called the TX-100 from H&B. I am surprised that graphics cards do not have these encoders on board.
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  11. dvddecrypter - file mode.-movie only.
    then pass it through dvd2one,and pick the movie,and its soundtrack,then use the psp software to redo it.
    it would save time all round.
    and those boxes,arent all there cracked up to be.
    LifeStudies 1.01 - The Angle Of The Dangle Is Indirectly Proportionate To The Heat Of The Beat,Provided The Mass Of The Ass Is Constant.
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  12. Member FulciLives's Avatar
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    Originally Posted by RottenFoxBreath
    dvddecrypter - file mode.-movie only.
    then pass it through dvd2one,and pick the movie,and its soundtrack,then use the psp software to redo it.
    it would save time all round.
    and those boxes,arent all there cracked up to be.
    That is basically what I said, more or less.

    - John "FulciLives" Coleman
    "The eyes are the first thing that you have to destroy ... because they have seen too many bad things" - Lucio Fulci
    EXPLORE THE FILMS OF LUCIO FULCI - THE MAESTRO OF GORE
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  13. Originally Posted by FulciLives
    Originally Posted by RottenFoxBreath
    dvddecrypter - file mode.-movie only.
    then pass it through dvd2one,and pick the movie,and its soundtrack,then use the psp software to redo it.
    it would save time all round.
    and those boxes,arent all there cracked up to be.
    That is basically what I said, more or less.

    - John "FulciLives" Coleman
    lol..so it was...great minds think alike..pmsl.
    LifeStudies 1.01 - The Angle Of The Dangle Is Indirectly Proportionate To The Heat Of The Beat,Provided The Mass Of The Ass Is Constant.
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  14. Member
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    "I also cannot understand why all this stuff (particularly mpeg2 --> mpeg4) is done in software - tmpeg, ffmpeg, nero etc etc etc. Surely there must be a cheap firmware solution ? I know that there is a £37 gadget which encodes mpeg2, mpeg 4 and other formats (USB breakout box) - but the inputs/outputs are all analogue - It's called the TX-100 from H&B. I am surprised that graphics cards do not have these encoders on board. "

    There are a number of hardware solutions available. Unfortunately, hardware isn't very intelligent, meaning for example you wouldn't be able to use your custom frame sizes, or if you could, the cost would rise considerably. Another example is found with DVD recorders... They can't guesstimate the optimum compression level, so you get a few options and make do.

    Some graphics cards do have compression acceleration, but it's intended for capture, so no way to access it in something like your situation, though that has and probably is still being worked on. Stand-alone cards for compression exist, but they're not cheap or common.

    "I use my own custom template 368x208 with high quality audio and a dual pass "

    This Recode could do... Perhaps the pay version of the software I linked to as well? A normal pass for me in Recode to NeroDigital mp4, involves a crop, resize, deinterlace, & either 1 or 2 passes. Target size and/or compression levels are adjustable, as is audio quality. What I don't see available is an option to go to 15 fps, if you're doing that. Still, might give it a try.
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    I checked out the URL's - thanks - some really useful features such as the ability to set the final file size before you start encoding (and the fact that it is a single step (rather than 2 or 3). Also liked the capability to capture THM's at any point in the film - PSP Video 9 grabs the first frame it finds - which is invariably the manufacturers logo ! Will have to try it out when I get a spare moment.

    I take your point about the hardware MPEG encoders - I had also noticed that alot of the graphics cards had MPEG encoding acceleration. I suppose the reason that some DVB-T cards have built in MPEG2 hardware encoders/decoders is that the parmeters of the DBV-T stream are fixed - whereas with PC video, as you said, bitrate, resolution audio -- too many variables.

    Many thanks.
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