DVD TV episode split into two

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pencil_case
Posts: 4
Joined: Mon Apr 05, 2021 12:55 pm

DVD TV episode split into two

Post by pencil_case »

Hello,
I have a TV series DVD that once scnned with MakeMKV, one of the videos is split into 2. After saving the files to disk, I tried rejoining them with avidemux using append and setting video and audio output to copy. This produced mainly blank screen with artfacts. Tried also with ffmpeg using the command:

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ffmpeg -f concat -safe 0 -i vidlist.txt -c copy output.mkv
with the same results.

Any idea why? I understand the files have to encoded the same for a copy to work but they are both segments of the same episode.

Would much prefer not to re-encode. Any ideas what I'm doing wrong or not understanding?

Thanks.
Woodstock
Posts: 9912
Joined: Sun Jul 24, 2011 11:21 pm

Re: DVD TV episode split into two

Post by Woodstock »

If you have not already, enable debug logging in MakeMKV and rip the disk again. Right now, there is insufficient information to guess at what is going on.

A read error would normally cause MakeMKV to remove the partial file.

Sometimes disks are authored with "2 part" episodes as one title, or two titles, or sometimes both.
MakeMKV Frequently Asked Questions
How to aid in finding the answer to your problem: Activating Debug Logging
pencil_case
Posts: 4
Joined: Mon Apr 05, 2021 12:55 pm

Re: DVD TV episode split into two

Post by pencil_case »

Thanks for replying.
Here's the log:

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Debug log started at Mon Apr 05 17:23:22 2021 , written by MakeMKV v1.16.3 win(x64-release)
001005:0000 MakeMKV v1.16.3 win(x64-release) started
001004:0000 Debug logging enabled, log will be saved as file://C:\Users\Me/MakeMKV_log.txt
Using 262272KB for read cache.
No  SDF v07e: HL-DT-ST_DVDRAM_GU40N_QX21_201012021117_M47C5BN5746
DEBUG: Code 3 at HFuPt/Gy+]n6ub.|sx^Z;r\.:29395310
SDF id v07e: HL-DT-ST_DVDRAM_GU40N_QX21_201012021117_M47C5BN5746
No  SDF v07e: HL-DT-ST_DVDRAM_GU40N_QX21_201012021117_M47C5BN5746
No auto SDF v07e: HL-DT-ST_DVDRAM_GU40N_QX21_201012021117_M47C5BN5746
DEBUG: Code 0 at gPRI"yQ}F4Le@?MT?:121264142
DEBUG: Code 0 at m%E[BU3w+&;Ubw)*:121268604
No  SDF v07e: HL-DT-ST_DVDRAM_GU40N_QX21_201012021117_M47C5BN5746
DEBUG: Code 3 at HFuPt/Gy+]n6ub.|sx^Z;r\.:29395310
SDF id v07e: HL-DT-ST_DVDRAM_GU40N_QX21_201012021117_M47C5BN5746
003007:0000 Using direct disc access mode
003025:0000 Title #1 has length of 49 seconds which is less than minimum title length of 120 seconds and was therefore skipped
003024:1000 Complex multiplex encountered - 3 cells and 1744 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
003028:0000 Title #2 was added (3 cell(s), 0:29:01)
003024:1000 Complex multiplex encountered - 3 cells and 1726 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
003028:0000 Title #2/0/1 was added (3 cell(s), 0:28:43)
003024:1000 Complex multiplex encountered - 3 cells and 1742 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
003028:0000 Title #2/0/2 was added (3 cell(s), 0:28:59)
003024:1000 Complex multiplex encountered - 2 cells and 344 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
003028:0000 Title #2/0/3 was added (2 cell(s), 0:05:42)
003024:1000 Complex multiplex encountered - 2 cells and 1395 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
003028:0000 Title #2/0/4 was added (2 cell(s), 0:23:13)
003024:1000 Complex multiplex encountered - 3 cells and 1744 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
003028:0000 Title #2/0/5 was added (3 cell(s), 0:29:01)
003024:1000 Complex multiplex encountered - 1 cells and 1870 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
003028:0000 Title #3 was added (1 cell(s), 0:31:07)
001003:0020 DEBUG: Code 233 at lxEK++UxMJwU/Sqo/9INVXIg:0
005011:0000 Operation successfully completed
The problem is...

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003028:0000 Title #2/0/3 was added (2 cell(s), 0:05:42)
003028:0000 Title #2/0/4 was added (2 cell(s), 0:23:13)
...which are 2 parts of the same episode.
It's not just this one disc it's a few discs from the same show and as far as I can tell so far, the same episode number in case that matters.
Both parts play fine in VLC media player but not after joining them together.

Thanks for any help.
pipo233
Posts: 39
Joined: Sat Oct 17, 2020 6:14 pm

Re: DVD TV episode split into two

Post by pipo233 »

you can try with mkvmerge to join them together like this
1.mkv is the new output file, 1-1 and 1-2.mkv are the parts to join

mkvmerge -o 1.mkv 1-1.mkv + 1-2.mkv
pencil_case
Posts: 4
Joined: Mon Apr 05, 2021 12:55 pm

Re: DVD TV episode split into two

Post by pencil_case »

Thanks, I tried MKVToolNix which uses mkvmerge as I understand it but got the sames results. Mainly blank video with artifacts as it plays.
pipo233
Posts: 39
Joined: Sat Oct 17, 2020 6:14 pm

Re: DVD TV episode split into two

Post by pipo233 »

Can you playback both parts? and they play well?

I think that does parts does not work right, hence the black screen

[Edit]
You already gave the answer to this question, didn't catch that..
Last edited by pipo233 on Thu Apr 08, 2021 8:56 am, edited 1 time in total.
preserve
Posts: 746
Joined: Sun Sep 13, 2015 10:21 pm
Location: Canada

Re: DVD TV episode split into two

Post by preserve »

If you haven’t already, you may want to look at Manual DVD Mode.

It may also help to tell us what the name of the series is and which country release you have, as you may get more help that way, especially if someone owns the same series and has already dealt with it.

If someone can help with this particular DVD and the name is given in the title, the question may receive the best reply in the DVD forum. If the question is more related to post-MakeMKV merging, the question may receive the best replies in the File Processing forum.
Using: ASUS BW-16D1HT 3.00
pencil_case
Posts: 4
Joined: Mon Apr 05, 2021 12:55 pm

Re: DVD TV episode split into two

Post by pencil_case »

Thanks for the replies.
The DV is a UK sitcom from the 1990s called "Goodnight Sweetheart". There are three problem episodes in the 7 series set. All episode 4 for some reason.

I have noticed something else with all episodes from this collection that doesn't happen with any of the other DVDs I've converted. When playing back, using VLC in my case, the video looks fine but when you skip forward or back using the keyboard arrows, the video is corrupted for a fraction of a second then carries on playing normally.

I looked at the Manual DVD mode link but I haven't got advanced knowledge of DVD authoring and honestly, haven't got the inclination to learn it for these faulty episodes. If it comes to it, I'll have to try re-encoding or something but happy to try other ideas first.
preserve
Posts: 746
Joined: Sun Sep 13, 2015 10:21 pm
Location: Canada

Re: DVD TV episode split into two

Post by preserve »

pencil_case wrote:
Fri Apr 09, 2021 12:01 pm
The DV is a UK sitcom from the 1990s called "Goodnight Sweetheart". There are three problem episodes in the 7 series set. All episode 4 for some reason.
Good to know. Hopefully someone else may have the same release or may come across this thread via Google and be able to offer further advice.
pencil_case wrote:
Fri Apr 09, 2021 12:01 pm
When playing back, using VLC in my case, the video looks fine but when you skip forward or back using the keyboard arrows, the video is corrupted for a fraction of a second then carries on playing normally.
That's almost certainly just VLC and you shouldn't have any reason to be concerned with your MKV files. I stopped using VLC a long time ago... mpv.io is currently my main player of choice.
Using: ASUS BW-16D1HT 3.00
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