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+--- Thread: ? in mp3 file name for playlists doesn't work (/showthread.php?tid=6700)
? in mp3 file name for playlists doesn't work - jmpz - 10-10-2022 15:10
Hello!
I have a few mp3s with file names that have a ? . Initially, they failed to be found when added to a playlist, but I discovered that removing this resolved the issue. I've attached two screenshots of the logs, the first showing one file failing and then another rescan after removing the ? from the first error.
RE: ? in mp3 file name for playlists doesn't work - simbun - 10-10-2022 17:35
The ascii question mark is a reserved character in Windows, so if it's not working in Linux then I assume simoncn has applied a standard across all the platforms (I'll give it a go later but I'm not at home at the moment).
EDIT: The rules are here.
Because I use Windows and Linux I too have a common standard, and replace the question mark character with a unicode "equivalent" ？. Having said that, I name my files $discnumber.$tracknumber so I only need to change it for folders if they appear in artist and album titles.
RE: ? in mp3 file name for playlists doesn't work - simoncn - 10-10-2022 17:44
The rules that simbun mentioned do not apply to files in playlists on a Linux system.
I tried this on a Synology NAS and it is working for me. What device are you using to run MinimServer? Are your files on the same device or accessed using a network share?
Are you sure that the path in your playlist exactly matches the filename (either both with ? or both without ?) ?
It is possible that the ? is not a real ? but a replacement for some unprintable character. Can you check this?
RE: ? in mp3 file name for playlists doesn't work - jmpz - 12-10-2022 12:50
Thanks for checking this!
I'm using a Synology DS920+, the files are on the same device.
I believe the path matches exactly, I'll attach some screenshots showing the playlist and the location.
![[Image: yhC3X6j.png]](https://i.imgur.com/yhC3X6j.png)
![[Image: VD1KrnX.png]](https://imgur.com/VD1KrnX.png)
I wasn't sure how to check if the ? is real, but I tried deleting it and typing a question mark, updated the playlist to match, and it didn't seem to fix it.
thanks for looking into this!
Jason
(10-10-2022 17:44)simoncn Wrote: The rules that simbun mentioned do not apply to files in playlists on a Linux system.
I tried this on a Synology NAS and it is working for me. What device are you using to run MinimServer? Are your files on the same device or accessed using a network share?
Are you sure that the path in your playlist exactly matches the filename (either both with ? or both without ?) ?
It is possible that the ? is not a real ? but a replacement for some unprintable character. Can you check this?
RE: ? in mp3 file name for playlists doesn't work - simoncn - 12-10-2022 14:37
(12-10-2022 12:50)jmpz Wrote: I wasn't sure how to check if the ? is real, but I tried deleting it and typing a question mark, updated the playlist to match, and it didn't seem to fix it.
Did you do a rescan after these changes? Also, you might need to reload the library into your control point, depending on what control point you are using.
RE: ? in mp3 file name for playlists doesn't work - jmpz - 12-10-2022 15:05
I did re-scan, but it still seems to fail on those same files. I renamed the file by removing the '?', and exported it back to the Synology, and rescanned, and it didn't come up as an error.
Weirdly though, if I just add a ? to another random file, and add it to a playlist, it doesn't happen. So it does seem to be mostly limited to these specific ones. I can playback the files back normally through minim otherwise, they show up in the correct album and display perfectly.
Maybe the stream url is helpful?
![[Image: HpXmECY.png]](https://imgur.com/HpXmECY.png)
(12-10-2022 14:37)simoncn Wrote:(12-10-2022 12:50)jmpz Wrote: I wasn't sure how to check if the ? is real, but I tried deleting it and typing a question mark, updated the playlist to match, and it didn't seem to fix it.
Did you do a rescan after these changes? Also, you might need to reload the library into your control point, depending on what control point you are using.
RE: ? in mp3 file name for playlists doesn't work - simoncn - 12-10-2022 16:31
This URL shows the cause of the problem. As I suspected, the filename does not contain a normal question mark (0x3f, encoded in the URL as *3f) but an invalid UTF-8 character (0xf025, encoded in the URL as *ef*80*a5).
How was this file created/ripped and then copied to the NAS?
RE: ? in mp3 file name for playlists doesn't work - jmpz - 12-10-2022 17:20
Interesting! I bought it from Bandcamp, and it's imported using https://swinsian.com/, it's like iTunes. It imports it to the library and copies the file to the NAS. As far as I can see, it doesn't change the file name.
I just tried a test of taking an mp3 file, adding a ? to the name via OSX finder, adding it to my library and a playlist, and seeing it fail. So it does seem reproducible to some degree.
(12-10-2022 16:31)simoncn Wrote: This URL shows the cause of the problem. As I suspected, the filename does not contain a normal question mark (0x3f, encoded in the URL as *3f) but an invalid UTF-8 character (0xf025, encoded in the URL as *ef*80*a5).
How was this file created/ripped and then copied to the NAS?
RE: ? in mp3 file name for playlists doesn't work - jmpz - 12-10-2022 17:33
I'm also seeing it for directories with _
![[Image: DDRVri5.png]](https://imgur.com/DDRVri5.png)
The stream path is
![[Image: VH3Td3w.png]](https://imgur.com/VH3Td3w.png)
Changing the directory name to SSS fixes it.
RE: ? in mp3 file name for playlists doesn't work - simoncn - 12-10-2022 18:14
The forward slash (/) is not a valid filename character. If the ripper is trying to name the folder for the band SS/S using a folder name SS/S, the result will be a folder named SS with a subfolder S. It sounds like either your ripper or your playlist creator has some bugs with how it handles some special characters.
In post #6 you said:
Weirdly though, if I just add a ? to another random file, and add it to a playlist, it doesn't happen. So it does seem to be mostly limited to these specific ones. I can playback the files back normally through minim otherwise, they show up in the correct album and display perfectly.
In post #8 you said:
I just tried a test of taking an mp3 file, adding a ? to the name via OSX finder, adding it to my library and a playlist, and seeing it fail. So it does seem reproducible to some degree.
From these two statements, I'm not clear whether this is working or failing with ? characters that you add manually to a filename without them.