B AS IC OP E R AT ION
F ile E xtens ions
Always add a file extension “ .MP 3” or “.mp3” to an MP 3 file
by using single-byte letters. If you add a different file extension,
or forget to add the file extension “ .MP 3” or “.mp3,” the
file cannot be played. In addition, if you use upper case and
lower case letters (capital and small letters) mixed together for
file extensions, normal play may not be poss ible.
F ile and F older S tructure
The folder name and file name can be displayed as the title
during MP 3 play. However, the title must be within 31 and 27
single-byte alphabetical letters and numerals for the folder
name and file name, respectively (not including an extension).
E ntering more letters or numerals than specified may caus e an
incorrect display.
A disc with a folder having more than 8 hierarchical levels will
conflict with MP 3 system requirements and playback will
be impossible.
A total of 255 files and folders are allowed. When the number
of files and folders is more than 255, playback of tracks in
excess of that number is impossible. T here is a maximum of
31 files in each folder. File tracks are played in the order that
they were recorded onto a disc. (F iles might not always be
played in the order displayed on the P C .)