DAP metadata display failure

The problem

Your digital audio player (DAP) labels your MP3 files 'Unknown' or otherwise fails to show the tag data - title, artist etc.

The probable cause

Your files' tag data is in ID3V2.4 and/or UTF format, which few DAPs recognise. Most DAPs recognise the format ID3v2.3 ISO-8859-1 .

The solution

Convert your files' tag data to ID3v2.3 ISO-8859-1 format as follows:

1. Go here to download Mp3tag V2.39f or later, install and launch.
2. Click Tools, Options, Tags Mpeg and ensure that under Write, ID3v2.3 ISO-8859-1 is selected.
3. Click OK.
4. Click File | Change Directory and select the directory contaning your music files.
5. Click Edit | Select All Files, then File | Save tag .
6. Click File | Exit

Now resend your files to your DAP. Your DAP should show the titles, artist etc. as required.