Join 2 Demuxed AC3 Video Tracks

[th3wolf]

So I've taken a movie that was spread over 2 DVD discs, indexed them together using DGIndex so that I could feed the single .d2v file into Avisynth as a single file, and now I need to join the two demuxed AC3 tracks from each disc together (DGIndex spit them out as separate streams).

Honestly, I'm hoping that this is a dumb question and it can be solved with something as simple as a /b copy command, but I'd like to know the optimal way of doing this that minimizes the possibility of it going out of sync (and I'm not willing to transcode it).

[poisondeathray]

It might be easier to join the source first, with vobmerge or mpg2cut2, then use DGIndex on the 1 joined file

[th3wolf]

The video file is already encoded, there must be a simple way to join the AC3 streams.

I'm sure theres a very simple way, re-doing the video is my last option.

Anything similar to the /b copy command that can be used to join .m2ts files?

[poisondeathray]

In my experience, dos commands most often cause problems when joining video & audio (errors & sync issues)

encoded to what format?

If you have xvid/AC3 in .avi for example, you could use avidemux to append the entire video it properly (direct stream copy), then save the audio. This will take less than a few minutes because there is no transcoding.

[madshi]

You can join ac3 tracks by using copy /b or by using "eac3to source1.ac3+source2.ac3 joined.ac3". However, whether audio stays in sync is another question...

[rica]

Demuxing individual DVDs with eac3to like this:

E:\VIDEO_TS> C:\eac3to\eac3to VTS_04_1.vob+VTS_04_2.vob+VTS_04_3.vob+VTS_04_4.vob+VTS_04_5.vob+VTS_04_6.vob 2: C:\KB_2\video.m2v 5: C:\KB_2\audio.ac3

VOB, 1 video track, 3 audio tracks, 2 subtitle tracks, 2:11:17
1: Joined VOB file
2: MPEG2, 576p25 (16:9)
3: AC3, 5.1 channels, 448kbps, 48khz, dialnorm: -27dB
4: AC3, 2.0 channels, 192kbps, 48khz, dialnorm: -27dB
5: AC3, 5.1 channels, 448kbps, 48khz, dialnorm: -27dB
6: Subtitle
7: Subtitle
[v02] Extracting video track number 2...
[a05] Extracting audio track number 5...
[a05] Removing AC3 dialog normalization...
[v02] Creating file "C:\KB_2\video.m2v"...
[a05] Creating file "C:\KB_2\audio.ac3"...
Video track 2 contains 196985 frames.
eac3to processing took 10 minutes, 39 seconds.
Done.

And later, remuxing them into a single ac3 file will fix the issue.

EDIT: In my sample the mainmovie is VTS_04_**

[th3wolf]

OK, so if I had copied the DVD's using DVDDecryptor in IFO mode and had just VTS_02_1.vob (Disc 1 movie PCG) and VTS_03_1.vob (Disc 2 movie PCG), then I could just use that same method that you mentioned rica and it should stay in sync?

[poisondeathray]

OK, so if I had copied the DVD's using DVDDecryptor in IFO mode and had just VTS_02_1.vob (Disc 1 movie PCG) and VTS_03_1.vob (Disc 2 movie PCG), then I could just use that same method that you mentioned rica and it should stay in sync?


If it's a fairly recent retail dvd you are better off using DVDFAB HD Decrypter (free) or AnyDVD ($). DVDDecryptor hasn't been updated in years and doesn't work on many newer copy protections

[th3wolf]

If it's a fairly recent retail dvd you are better off using DVDFAB HD Decrypter (free) or AnyDVD ($). DVDDecryptor hasn't been updated in years and doesn't work on many newer copy protections

I use AnyDVD to remove the protection and DVDDecryptor for the 1 click copy.

[rica]

OK, so if I had copied the DVD's using DVDDecryptor in IFO mode and had just VTS_02_1.vob (Disc 1 movie PCG) and VTS_03_1.vob (Disc 2 movie PCG), then I could just use that same method that you mentioned rica and it should stay in sync?

Most probably yes.
You should try.