Recent Sonos update is broken on non-ASCII characters in file names

Like mjvanthoor I create playlists every night, and I also have plenty of items with letter outside the ASCII range. However, I don’t have the problem mjvanthoor has, since I use “boring” names. A folder with a playlist has a name like 1665457592_1. (Current Unix time and a running number for the day.). Inside these folders the files are named 01.lnk.mp3, 02.lnk.mp3 etc. Despite the name, they are physical copies of the files. I think I tried to use sym/hardlinks originally, but I did not get it to work. As for having the real titles in the file name - I don’t recall if I ever tried that and it failed because of the character set. And if there were such an issue, was that with Sonos or because I used Perl and Perl is not good with Unicode in file names. It was many years ago, and the system I have works for me. I don’t have to see these boring names in the Sonos application, but here tags, folders etc display correctly without issues.

The reason why my setup isn’t working with Sonos is because the filenames in playlest get mangled on import. I’ve gone and just removed all the diatrics from the filenames, and now everything should work. I could also have tried it your way: generating a list of 250 files like I do now, copy those files into a folder with a random guid-like name, and then save the playlist to point to those files.

That would certainly work, but the one thing I don’t like about this setup is that I would need to copy about 3GB of music every night. (About 12 pieces per hour, for 12 hours is 144 pieces; say, 150 for a nice round number, at 20 MB per FLAC file, comes down to around 3GB.)

The strange thing is that Sonos does understand diatrics in file names, because the “normal” playlists (made through the Sonos app) work fine. They just don’t work when importing a playlist from the NAS.

I don’t use the normal playlists, but do they have the same format as the playlists you have on the NAS? I would guess that they have an internal format.

I don’t know the format. They’re just the Sonos app playlists. You add the NAS and it reads the metadata from the files (and the file location, obviously) and then you can add the pieces from your library to a Sonos playlist in the app.

The playlist that is not working correctly (as in: files can’t be found and names are mangled) are just normal M3U text playlists I generate on the NAS.

Sonos playlist are XML files in utf8 format. You can export (and import) them using my iOS app (see profile).

I believe the root of the OPs problem is the encoding of the playlist files, and I don’t know enough about M3U files to speak definitively on that.