A problem with the disordered sorting of Split video files (file stack

[bfogdb20825 4]

My device is Synology DS220+.

 

The installed version is the one from the Package Center, and its version number is 4.8.10.0 - 724081000.

 

The problem I'm currently having is that the additional parts of Split video files (file stacking) are out of order.

 

I've read https://emby.media/support/articles/Movie-Naming.html in detail. And I've tried various segment names as guided, such as 1>2>3, a>b>c, part#, cd#, dvd#, pt#, disk#, disc#.

 

You can also use:

moviename#.ext

Where # can be A through D.

 

Examples:

\Movies\Avatar (2009)\Avatar (2009)-cd1.mkv

\Movies\Avatar (2009)\Avatar (2009)-cd2.mkv

 

I've also tried sorting the APP page, file names, and titles in both ascending and descending order. However, the additional parts are still out of order.

 

Moreover, I've tried putting multiple different movies' cd1/cd2 in the same folder. I found that sometimes the additional parts of the same movie couldn't be recognized as belonging to one movie but were recognized as two separate movies instead. Later, after I strictly followed the guidance to create new folders and place them in, this phenomenon disappeared. But their order is still chaotic!

 

Finally, I tried Jellyfin. I found that these phenomena were normal with it. It can recognize them properly under any circumstances

embyserver.txt

[Neminem 1518]

Here is a wild guess.

Try adding a space before the - and after the -

\Movies\Avatar (2009)\Avatar (2009) - cd1.mkv

\Movies\Avatar (2009)\Avatar (2009) - cd2.mkv

[Happy2Play 9780]

Will have to look but the was/is another topic where file stacking items were captured in wrong order ie cd-2 being first and cd-1 being additional part.

Will potentially need to see debug logging.

 

[bfogdb20825 4]

54 minutes ago, Neminem said:

Here is a wild guess.

Try adding a space before the - and after the -

\Movies\Avatar (2009)\Avatar (2009) - cd1.mkv

\Movies\Avatar (2009)\Avatar (2009) - cd2.mkv

I added spaces before and after cd “-” according to your method, but the result is still out of order.

[Happy2Play 9780]

Just now, bfogdb20825 said:

I added spaces before and after cd “-” according to your method, but the result is still out of order.

Yes that method is for multi-versioning not file stacking.

Was this media added to 4.8.10.0 or existing media that you are noticing this issue?

But dev will have to comment further as I thought a fix has put in for this.

[bfogdb20825 4]

1 hour ago, Neminem said:

Here is a wild guess.

Try adding a space before the - and after the -

\Movies\Avatar (2009)\Avatar (2009) - cd1.mkv

\Movies\Avatar (2009)\Avatar (2009) - cd2.mkv

Attach a debug log along with screenshots.

embyserver (2).txt

[Neminem 1518]

Tbh I always merge multi part videos into 1 file.

Adding

I use this to merge them

AVIMux GUI 1.17.8 / 1.17.8.3 Free Download - VideoHelp

Edited December 22, 2024 by Neminem

[Happy2Play 9780]

29 minutes ago, bfogdb20825 said:

Attach a debug log along with screenshots.

embyserver (2).txt 107.14 kB · 0 downloads

Can you remove this content do full scan, then readd it as I am looking of "Debug App: Found extra AdditionalPart" login like shown in linked topic above.  Or if you have a different movie you can add.

20 minutes ago, Neminem said:

Tbh I always merge multi part videos into 1 file.

Yes this is the recommended method these days as not all clients will automatically play second part.

[bfogdb20825 4]

1 hour ago, Happy2Play said:

Can you remove this content do full scan, then readd it as I am looking of "Debug App: Found extra AdditionalPart" login like shown in linked topic above.  Or if you have a different movie you can add.

Yes this is the recommended method these days as not all clients will automatically play second part.

I have already tried deleting the media library and re-adding it, and added spaces before and after the " - " in the file names, but they are still out of order.

The file name is "妖姬".

Another thing is that I hope Emby can automatically stack all the movies' CD1/CD2 in the same folder just like Jellyfin does, instead of requiring me to create a new folder for each movie to organize them. Currently, the situation is chaotic. Some are successfully stacked but in a disordered manner, and some are even split into two independent movies.

embyserver (4).txt

[bfogdb20825 4]

Under normal circumstances, file names with the same name like CD1/CD2 in the same folder should be automatically stacked into one movie. However, the current bug is that sometimes they are recognized as two independent movies and the additional parts are out of order.

Attach a debug log along with screenshots.

embyserver (5).txt

[Luke 42077]

@bfogdb20825can you please provide a specific example? How are those files named and organized? Please provide exact examples. Thanks !

[bfogdb20825 4]

8 hours ago, Luke said:

@bfogdb20825can you please provide a specific example? How are those files named and organized? Please provide exact examples. Thanks !

When I upgraded to the latest beta version 4.9.0.34 and named and sorted strictly according to the guidelines, it has been working properly.

 

Examples:

 

\Movies\Avatar (2009)\Avatar (2009)-cd1.mkv

 

\Movies\Avatar (2009)\Avatar (2009)-cd2.mkv

 

However, if all the movies with cd1/cd2 are put into one folder, the sorting is still chaotic and many files won't be stacked. I hope this problem will be improved in the future.

 

Examples:

 

\Movies\Avatar (2009)-cd1.mkv

 

\Movies\Avatar (2009)-cd2.mkv

 

\Movies\text(2009)-cd1.mkv

 

\Movies\text(2009)-cd2.mkv

[Luke 42077]

OK we'll take a look at that. Thanks.

[bfogdb20825 4]

44 minutes ago, Luke said:

好，我们来看看这个。谢谢。

After I tested that the new version was normal, the file names became disordered again after migration. The name is 摧花神龙教(1993) .mpg.

 

file:"/volumeUSB2/usbshare/三级电影/摧花神龙教(1993)/摧花神龙教(1993) -cd2.mpg" -threads 0 -v info -print_format json -show_streams -show_chapters -show_format -show_data

2024-12-29 13:45:23.083 Info MediaProbeManager: ProcessRun 'ffprobe' Process exited with code 0 - Succeeded

2024-12-29 13:45:23.091 Info MediaProbeManager: ProcessRun 'ffprobe' Execute: /var/packages/EmbyServer/target/bin/ffprobe -i file:"/volumeUSB2/usbshare/三级电影/摧花神龙教(1993)/摧花神龙教(1993) -cd1.mpg" -threads 0 -v info -print_format json -show_streams -show_chapters -show_format -show_data

2024-12-29 13:45:23.107 Info MediaProbeManager: ProcessRun 'ffprobe' Process exited with code 0 - Succeeded

embyserver (7).txt

[bfogdb20825 4]

55 minutes ago, Luke said:

OK we'll take a look at that. Thanks.

The ones in reverse order in the log are disordered. The problem remains the same.

[Happy2Play 9780]

As mentioned debug logging would show this better.  As the probe order doesn't tell us the "Debug App: Found extra AdditionalPart" order.  As your image is actually just it probe sometimes the first file and sometimes not. 

So are all the ones that are probed in the correct order displayed properly?

[bfogdb20825 4]

8 hours ago, Happy2Play said:

As mentioned debug logging would show this better.  As the probe order doesn't tell us the "Debug App: Found extra AdditionalPart" order.  As your image is actually just it probe sometimes the first file and sometimes not. 

So are all the ones that are probed in the correct order displayed properly?

Yes. The content displayed in the log in positive order is indeed in positive order, and the content displayed in the log in reverse order is also in reverse order. However, when the file extension suffixes are different, they will not be stacked and there will be omissions when scanned.

[Luke 42077]

On 12/29/2024 at 12:55 AM, bfogdb20825 said:

After I tested that the new version was normal, the file names became disordered again after migration. The name is 摧花神龙教(1993) .mpg.

 

file:"/volumeUSB2/usbshare/三级电影/摧花神龙教(1993)/摧花神龙教(1993) -cd2.mpg" -threads 0 -v info -print_format json -show_streams -show_chapters -show_format -show_data

2024-12-29 13:45:23.083 Info MediaProbeManager: ProcessRun 'ffprobe' Process exited with code 0 - Succeeded

2024-12-29 13:45:23.091 Info MediaProbeManager: ProcessRun 'ffprobe' Execute: /var/packages/EmbyServer/target/bin/ffprobe -i file:"/volumeUSB2/usbshare/三级电影/摧花神龙教(1993)/摧花神龙教(1993) -cd1.mpg" -threads 0 -v info -print_format json -show_streams -show_chapters -show_format -show_data

2024-12-29 13:45:23.107 Info MediaProbeManager: ProcessRun 'ffprobe' Process exited with code 0 - Succeeded

embyserver (7).txt 1.92 MB · 1 download

HI @bfogdb20825what do you mean by migration? What exactly did you do?

[bfogdb20825 4]

On 7/12/2025 at 2:59 AM, Luke said:

HI @bfogdb20825what do you mean by migration? What exactly did you do?

In older versions, CD1 and CD2 sometimes wouldn't stack automatically... The new version has fixed this issue, but the current problem is that the stacking order is still incorrect.

 

 

[Luke 42077]

Quote

However, when the file extension suffixes are different, they will not be stacked and there will be omissions when scanned.

@bfogdb20825

Having the same file extensions has always been a requirement for stacking.   The non-stacked version should still show up though. Does it?

[bfogdb20825 4]

On 7/25/2025 at 1:39 PM, Luke said:

@bfogdb20825

Having the same file extensions has always been a requirement for stacking.   The non-stacked version should still show up though. Does it?

 "No, the issue now is that stacking works, but the order is messed up — for example, CD2 comes before CD1."

 

 

 

 

[Luke 42077]

20 hours ago, bfogdb20825 said:

 "No, the issue now is that stacking works, but the order is messed up — for example, CD2 comes before CD1."

 

 

 

 

Can you try adding a new movie and see if it happens with that?

[bfogdb20825 4]

On 8/4/2025 at 12:18 PM, Luke said:

Can you try adding a new movie and see if it happens with that?

I had already tried it in the latest beta version 4.9.1.14 before your reply. The result is still a messy sorting order. I can provide logs if necessary.

 

[bfogdb20825 4]

On 8/4/2025 at 12:18 PM, Luke said:

Can you try adding a new movie and see if it happens with that?

embyserver (1).txt

2025-08-05 17:49:15.903 Debug App: Found extra AdditionalPart /volume1/web/1/灵通天地性连环/灵通天地性连环-CD2.ts for /volume1/web/1/灵通天地性连环/灵通天地性连环-CD5.ts

2025-08-05 17:49:15.903 Debug App: Found extra AdditionalPart /volume1/web/1/灵通天地性连环/灵通天地性连环-CD1.ts for /volume1/web/1/灵通天地性连环/灵通天地性连环-CD5.ts

2025-08-05 17:49:15.903 Debug App: Found extra AdditionalPart /volume1/web/1/灵通天地性连环/灵通天地性连环-CD4.ts for /volume1/web/1/灵通天地性连环/灵通天地性连环-CD5.ts

2025-08-05 17:49:15.903 Debug App: Found extra AdditionalPart /volume1/web/1/灵通天地性连环/灵通天地性连环-CD3.ts for /volume1/web/1/灵通天地性连环/灵通天地性连环-CD5.ts

2025-08-05 17:49:15.912 Debug App: Running FFProbeProvider for /volume1/web/1/灵通天地性连环/灵通天地性连环-CD5.ts

 

 

I created a new folder and a new media library, but the issue still persists — the items are still out of order.

I’m surprised such a simple bug still hasn’t been fixed after all this time.

 

 

embyserver (1).txt

[Luke 42077]

@bfogdb20825OK I think I've finally tracked this down. Please let me know if the next build resolves it. Thanks !