Server Version#:1.41.5.9626-72009626
DS920+ version DSM 7.2.2-72806 Update 4
To simplify this as much as possible, I put some MP3 files in a new share called PlexMedia.
I check the “Apply to this folder, sub-folders and files” box and click “Save” but it makes no difference.
I just can’t figure out what I’m doing wrong. Any suggestions?
Did you put PlexMedia/plex-music on /volume1 or another volume?
Given it has the name, something else is going on with plex-music
Nov 04, 2025 21:39:40.232 [139697391377208] DEBUG - Scanner: Processing directory /volume1/PlexMedia/plex-music (parent: no)
Nov 04, 2025 21:39:40.232 [139697391377208] ERROR - Couldn't get size of file "/volume1/PlexMedia/plex-music/Drive My Car The Beatles.mp3": boost::filesystem::file_size: No such file or directory [system:2]: "/volume1/PlexMedia/plex-music/Drive My Car The Beatles.mp3"
Nov 04, 2025 21:39:40.233 [139697391377208] ERROR - Couldn't get size of file "/volume1/PlexMedia/plex-music/Girl The Beatles.mp3": boost::filesystem::file_size: No such file or directory [system:2]: "/volume1/PlexMedia/plex-music/Girl The Beatles.mp3"
Nov 04, 2025 21:39:40.233 [139697391377208] ERROR - Couldn't get size of file "/volume1/PlexMedia/plex-music/I'm Looking Through You The Beatles.mp3": boost::filesystem::file_size: No such file or directory [system:2]: "/volume1/PlexMedia/plex-music/I'm Looking Through You The Beatles.mp3"
Nov 04, 2025 21:39:40.233 [139697391377208] ERROR - Couldn't get size of file "/volume1/PlexMedia/plex-music/If I Needed Someone The Beatles.mp3": boost::filesystem::file_size: No such file or directory [system:2]: "/volume1/PlexMedia/plex-music/If I Needed Someone The Beatles.mp3"
Nov 04, 2025 21:39:40.233 [139697391377208] ERROR - Couldn't get size of file "/volume1/PlexMedia/plex-music/In My Life The Beatles.mp3": boost::filesystem::file_size: No such file or directory [system:2]: "/volume1/PlexMedia/plex-music/In My Life The Beatles.mp3"
Nov 04, 2025 21:39:40.233 [139697391377208] ERROR - Couldn't get size of file "/volume1/PlexMedia/plex-music/Michelle The Beatles.mp3": boost::filesystem::file_size: No such file or directory [system:2]: "/volume1/PlexMedia/plex-music/Michelle The Beatles.mp3"
Nov 04, 2025 21:39:40.233 [139697391377208] ERROR - Couldn't get size of file "/volume1/PlexMedia/plex-music/Norwegian Wood (This Bird Has Flown) The Beatles.mp3": boost::filesystem::file_size: No such file or directory [system:2]: "/volume1/PlexMedia/plex-music/Norwegian Wood (This Bird Has Flown) The Beatles.mp3"
Nov 04, 2025 21:39:40.233 [139697391377208] ERROR - Couldn't get size of file "/volume1/PlexMedia/plex-music/Nowhere Man The Beatles.mp3": boost::filesystem::file_size: No such file or directory [system:2]: "/volume1/PlexMedia/plex-music/Nowhere Man The Beatles.mp3"
Nov 04, 2025 21:39:40.233 [139697391377208] ERROR - Couldn't get size of file "/volume1/PlexMedia/plex-music/Run for Your Life The Beatles.mp3": boost::filesystem::file_size: No such file or directory [system:2]: "/volume1/PlexMedia/plex-music/Run for Your Life The Beatles.mp3"
Nov 04, 2025 21:39:40.233 [139697391377208] ERROR - Couldn't get size of file "/volume1/PlexMedia/plex-music/The Word The Beatles.mp3": boost::filesystem::file_size: No such file or directory [system:2]: "/volume1/PlexMedia/plex-music/The Word The Beatles.mp3"
Nov 04, 2025 21:39:40.233 [139697391377208] ERROR - Couldn't get size of file "/volume1/PlexMedia/plex-music/Think for Yourself The Beatles.mp3": boost::filesystem::file_size: No such file or directory [system:2]: "/volume1/PlexMedia/plex-music/Think for Yourself The Beatles.mp3"
Nov 04, 2025 21:39:40.233 [139697391377208] ERROR - Couldn't get size of file "/volume1/PlexMedia/plex-music/Wait The Beatles.mp3": boost::filesystem::file_size: No such file or directory [system:2]: "/volume1/PlexMedia/plex-music/Wait The Beatles.mp3"
Nov 04, 2025 21:39:40.233 [139697391377208] ERROR - Couldn't get size of file "/volume1/PlexMedia/plex-music/What Goes On The Beatles.mp3": boost::filesystem::file_size: No such file or directory [system:2]: "/volume1/PlexMedia/plex-music/What Goes On The Beatles.mp3"
Nov 04, 2025 21:39:40.233 [139697391377208] ERROR - Couldn't get size of file "/volume1/PlexMedia/plex-music/You Won't See Me The Beatles.mp3": boost::filesystem::file_size: No such file or directory [system:2]: "/volume1/PlexMedia/plex-music/You Won't See Me The Beatles.mp3"
I started by putting the MP3 files in subdirectory plex-music inside the shared folder PlexMedia, but when that didn’t work I moved the MP3 files up into the PlexMedia directory.
In Plex, for Music, your folder structure, file names and file tags are all very important.
Your folder structure and file names for The Beatles -1965 - Rubber Soul album should look like this:
PlexMedia/
Music/
The Beatles/
The Beatles - 1965 - Rubber Soul/
The Beatles - 01 - Drive My Car.mp3
The Beatles - 02 - Norwegian Wood (This Bird Has Flown).mp3
The Beatles - 03 - You Won't See Me.mp3
The Beatles - 04 - Nowhere Man.mp3
The Beatles - 05 - Think for Yourself.mp3
The Beatles - 06 - The Word.mp3
The Beatles - 07 - Michelle.mp3
The Beatles - 08 - What Goes On.mp3
The Beatles - 09 - Girl.mp3
The Beatles - 10 - I'm Looking Through You.mp3
The Beatles - 11 - In My Life.mp3
The Beatles - 12 - Wait.mp3
The Beatles - 13 - If I Needed Someone.mp3
The Beatles - 14 - Run for Your Life.mp3
The Beatles - 1966 - Revolver/
...
You also need to tag your .mp3 files using Mp3Tag which is a free Windows or Mac program, or any similar music tagging program.
I personally use Tag & Rename (Commercial).
Your tags should include the following tags, any other tags can be included, but Plex will not use them, Plex will only use the tags listed below:
Artist
Album Artist (Very Important!)
Album
Title
Year
Genre
Disc Number (if more than one disc for the album)
Track Number
Cover Art
How The Beatles - 1965 - Rubber Soul album should be tagged:
For more information about naming and organising your Media, see this page:
Your Media | Plex Support
Your file permissions should also be addressed, but so should the above!
How are you moving them? With FileStation or over the network on a SMB network mount?
I ask because SMB mounts can change the permissions
Can we try an experiment to confirm things are right?
MP3 folderPlexMediaServer permissions (apply to all)I originally moved the files in an SSH command line session.
I just followed the steps outlined in your message, and now the album shows up under Music!
So in the future, should I perform all file copies using FileStation to get them into Plex?
If you have a Windows PC, then go to DSM Control Panel > File Services and Enable SMB Service
Then in Windows File Explorer, under Network, your NAS should show up.
You can then use Windows File Explorer to transfer files to/from the NAS.
On a Mac, you can use Finder in a similar way, but the steps to set it up are a little different.
If you use Linux, then set up NFS and that will allow you to use the File Explorer to transfer files to/from the NAS.
Thank you for your help on this!
When I originally set up Plex, I used the “cp” command at the OS command line to copy the MP3 files over, and verified with “ls” that the files were in the right directory. I’m curious why this doesn’t work. Are there some additional attributes managed by FileStation that would have been bypassed by using “cp”?
CP alone cannot copy the file attributes/permissions, for that you also need to use chmod, but even then you may not set them correctly for the Synology NAS or Plex.
It is best to allow DSM to manage the permissions, which it will do when you use SMB/AFP/NFS to copy the files into a Shared folder on your NAS;
E.G. /volume1/PlexMedia
File Station will also preserve the attributes/permissions when moving files etc. on your NAS.
If you suspect file permissions are missing from your files, Plex does not see them for example, then use File Station > Properties > Permission tab etc… to correct them. Don’t forget to Apply to this folder, sub-folders and files when you do so.
