6230, MP3 and titles

Hi,
I want to play my own AAC-files with the 6230-musicplayer.
I use the PC-suite to download the files which works as long as
I simply copy the list of files in the MMC-directory (not in
subdirectories).

Whenever listing the files I can see the filename on the display.
With the NOKIA-32MBit MMC there came an AAC file. When listing that file
on the playlist, name of title and interpret are listed instead of the
filename.
This is what I want to have for my own files too.

Question: How can I add title of a musicfile so that it is displayed
instead of the filename? It seems that the name is not coded as ID3-tag
or something known.

Best regards,
Hauke