I don't know if this is the right place to post this.
When I transfer my .ogg music files to my cowon s9, it doesn't recognise the tags so all I see is "unknown" for album, song and artist. I have tried retagging using easytag but it still shows up as unknown but when I converted an album to mp3, the tags automatically showed up.
I know it would be easier just to convert all my songs to mp3 but the reason I chose the cowon was its ability to play .ogg files, my preferred choice of music file.
The odd thing is I had a D2 until I lost it and that showed the tags ok.