Mp3 player doesn't work

according to panasonic only the SC-EN27 out of this series can play mp3's.
It looks just like the SC-EN25 you posted on its page.

In case you have the 27, this is what the manual has to say:

? You may not be able to play MP3 if you have copied
a multi-session disc that has no data between
sessions.
? When creating a multi session disc, it is necessary
to close the session.
? The amount of data on the disc is too small. Set the
amount of data to greater than approximately 5 MB.

Hope you work it out. If you want you should be able to connect it to an external mp3 player.

Good luck