.VOB's in ProjectX

[Dr. Poque]

I've only been ripping DVDs for a little bit, and I've been ripping them to play on my portable media player, a NHJ MPM-202 (http://www.nhjapan.com/canada/prod/mpm201/index.html). I've been using AutoGK but recently started ripping my Futurama DVDs and noticed a slight sync problem between the audio and video on a few of the episodes. I looked online and heard about ProjectX, and that even though it was meant for recorded digital broadcasts, some people used it with .VOB's as well. The problem I'm having is that when I try to demux an episode with ProjectX, it removes almost 3 full minutes of video, and almost 7 minutes of audio, I don't know what most of the options in the program really do, and the full doom9 guide didn't really help since it was based on an older version, and doesn't say what the settings need to be. I searched on Google and found another guide by Pizza The Hut (meant for demuxing .ts streams), but the outcome was the same.

So I was wondering if anyone uses ProjectX to demux thier .VOB's maybe they could tell me the settings i need to use, or if anyone can suggest a different program that will keep the audio and video synced as well as ProjectX apparently does.

[Soopafresh]

DGMPGDec v1.4x will demux audio and video.

[absinthecarolinas]

YES! I discovered rather by accident that ProjectX will in fact demux a VOB set and will keep everything in sync. Don't try to use DGDecode/DGMPGDec for your situation because you will have a sync problem.

I had the exact problem you did: a DVD of episodes that when demuxed, the latter episodes would lose sync. ProjectX will demux everything you want and will keep the files in sync.

The only other way I've found to do it is to reauthor the separate episodes with DVDShrink. But then you'll have separate files when demuxed. If you just want the whole thing in one big file (one big *.m2v and one big audio file, subs and whatnot), ProjectX is the only way I've found to do it ... and it works great!

edit: sorry, I didn't read your whole post ... about settings. I've always used the default settings. I've only altered the demux destination directory, and I uncheck things I don't want (i.e. subtitles, second audio tracks, etc). -abs

-abs

[Dr. Poque]

Well I used the default settings when demuxing. And if the problem isn't the settings then I have no idea what it could be, so I will post the first part of the log that ProjectX made (I would post it all but it came out at 315kb) and maybe someone can point out something.

• Thursday, June 9, 2005 2:26:17 o'clock PM PDT
  ProjectX 0.82.1.02 (07.05.2005)
  
  <<< session infos >>>
  
  -> working with collection 0
  
  -> normal log file
  -> write all video data
  -> write all other data
  -> patch c.d.flagged infos of pictures
  -> add sequence end code
  -> set resolution in SDE
  
  -> write output files to: D:\FUTURAMA_S1_D1\
  
  -> Input File 0: D:\FUTURAMA_S1_D1\VTS_04_1.VOB (1073614848 bytes)
  -> File is MPEG-2 PS/SS (Video/Audio PES)
  -> demux
  -> VobID 26 CellID 1 @ 1024 (GOP#0 / Frame#0)
  -> found PES-ID 0xE0 (MPEG Video) @ 2062
  -> video basics: 720*480 @ 29.97fps @ 0.6735 (4:3) @ 9800000bps, vbvBuffer 112
  -> starting export of video data @ GOP# 0
  -> found PES-ID 0xBD (private stream 1) (SubID 0x80) @ 26638
  -> found PES-ID 0xBD (private stream 1) (SubID 0x81) @ 28686
  -> found PES-ID 0xBD (private stream 1) (SubID 0x82) @ 32782
  -> found PES-ID 0xBD (private stream 1) (SubID 0x83) @ 34830
  !> PTS difference of 9009 (00:00:00.100) to last exported GOP detected
  !> dropping useless B-Frames @ GOP# 1 / new Timecode 00:00:00.333
  !> PTS difference of 9009 (00:00:00.100) to last exported GOP detected
  !> dropping useless B-Frames @ GOP# 2 / new Timecode 00:00:00.667
  !> PTS difference of 9009 (00:00:00.100) to last exported GOP detected
  !> dropping useless B-Frames @ GOP# 3 / new Timecode 00:00:01.001
  !> PTS difference of 4504 (00:00:00.050) to last exported GOP detected
  !> dropping useless B-Frames @ GOP# 4 / new Timecode 00:00:01.134
  !> PTS difference of 9009 (00:00:00.100) to last exported GOP detected
  !> dropping useless B-Frames @ GOP# 6 / new Timecode 00:00:01.701
  -> found PES-ID 0xBD (private stream 1) (SubID 0x20) @ 1372174
  -> found PES-ID 0xBD (private stream 1) (SubID 0x21) @ 1374222
  !> PTS difference of 9009 (00:00:00.100) to last exported GOP detected
  !> dropping useless B-Frames @ GOP# 7 / new Timecode 00:00:02.035
  !> PTS difference of 9009 (00:00:00.100) to last exported GOP detected
  !> dropping useless B-Frames @ GOP# 8 / new Timecode 00:00:02.369

The "PTS difference" and "dropping useless B-Frames" messages appear constantly at that rate throughout the log for the video, and I'm guessing that is the problem. I thought it might be that I ripped from the DVD using the IFO mode in DVDDecrypter so I could get all the episodes out seperately, but even when I just ripped the main .VOB's it did the same thing. So if anyone can help me out and let me know what is wrong, or what I'm doing wrong, and maybe give me a walkthrough of how to do it properly, that would be great.

[absinthecarolinas]

Under the "out" tab, do you have checked "write all video data" and "write all audio data?"

-abs

[The_Doman]

@Dr. Poque

I had exact those same problems demuxing VOB files with ProjectX.

This is how it worked perfectly for me.

First join the corresponding VOB sets together to ONE big VOB file.
Example:
VTS_01_1.VOB
VTS_01_2.VOB
VTS_01_3.VOB
.............
You can use all common joining tools for that.
I use the fantastic Total Commander tool for it.

After joining the big VOB file should demux properly with ProjectX.

[Dr. Poque]

Under the "out" tab, do you have checked "write all video data" and "write all audio data?"

I have "write all video data" and "write all other data" checked, so that isn't the problem.

I was going to try to combine the .VOB's for the episode into just one big .VOB, but I don't see how Total Commander can do that since its just an enhanced file browser it seems, but I tried it anyways and it treated the .VOB's just like any other unknown file type. So maybe you can repost and be more specific on how to do it.

Also I tried running Spirited Away trhough ProjectX just to see if it was Futurama that it was having a problem with, but it did the exact same thing, so I'm thinking it might be a problem with NTSC DVDs. Anyways I am going to try to run a few more movies through ProjectX tommorow, and i will post what happens.

[absinthecarolinas]

The problem is definitely not NTSC DVD's. In fact, if you're having the same problem on 2 different DVDs I have to wonder if you're doing something wrong. In my case, the problem was understandable because the DVD I was trying to rip had already been reauthored from an original, and the DVD I had had only one titleset (VTS) containing what had orignially been *four* titlesets (episodes).

Are the VOBs you are working with ripped directly from *retail* DVDs?

-abs

[Dr. Poque]

I tried running about 8 different movies through ProjectX and the same problem happened with all of them as well, I was even able to have just one big .VOB by turning off file splitting in DVDDecrypter, but that didn't change anything. I also tried ripping the DVDs with DVDShrink but the outcome with ProjectX was the same.

All of the DVDs I am ripping are full retail DVDs that I own, so that isn't the problem. It must be some setting in ProjectX, or something I need to change when I am ripping the .VOB's from the DVD.

I have everything in ProjectX on the default settings, and I am ripping the DVDs using DVDDecrypter in IFO mode with the default settings. I am using ProjectX v0.82.01.02_b1, and DVDDecrypter v3.5.4.0.

If anyone has any idea what the problem is, any help would be greatly appreciated.

[absinthecarolinas]

Well this will be of no help to you, but I wanted to let you know that you are not crazy. Since I lasted posted here, in spite of all my previous comments, I have now come across a similar problem. In trying to demux some episodes from a DVD which had already been reauthored, some 43-minute episodes became 33 minutes.

Weird. Maybe someone has an answer.

-abs