Ford Ranger Owner's Handbook Manual page 141

Joliet extended
format
Romeo extended
format
*
English one-byte characters (capitalized
only) and underscore '_' are available.
MP3 files playback order
The playback order of the folders and files
is as shown.
Note: A folder that does not include an
MP3 file is skipped.
Compact disc player
Max number of
characters in a file
name including
'.mp3' extension
64
128
E83712
A Level 1
B Level 2
C Level 3
D Level 4
This unit will play MP3 files that have up to
eight levels. However, the more levels a
disc has, the longer it will take to initially
start playing. It is recommended to record
discs with two levels or less.
A single disc with up to 512 files can be
played and a single folder with up to 255
files can be played.
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