Sony CRX10U User Manual page 28

Play Order of MP3 Files
The order in which MP3 files are played from an MP3 disc depends on
the number of folder levels on the disc and the names of the MP3 files.
The priority of folders and file depends on the characters used in their
names, with symbols having the highest priority, followed by numerals
(0-9) and letters (A-Z). For example, with the MP3 disc hierarchy
shown in the figure below, MP3 files are played in the sequence
indicated by the numbers 1 to 9.
Note
One way to determine the order in which files at the same folder level are played is to
add numerals to the beginning of the file names.
Example: 01xxx.MP3, 02xxx.MP3
28
ARTIST
1 10u.mp3
album001
album
002
album003
Folder
MP3 file
4 RAIN.MP3
best001
3 WIND.MP3
best002
SELECT
5 BLUE.MP3
7 RED.MP3
6 green.mp3
xyz
8 700e.mp3
SUB
2 snow.mp3
9 yellow.mp3