Sony NWZ-A815 Operation Manual page 141

Playable data hierarchy has rules. Transfer data properly. see the following illustrations.
Data hierarchy may differ. depending on your computer environment.
For songs
(On Windows Explorer)
Drag and drop files or folders into the "MUSIC" folder.
However. beyond the 8th level. nothing will be recognized.
(On the player)
Folders are displayed in the folder name order first. then files are displayed
in the file name order. In this case. the upper or lower case letters are not
distinguished.
g
f------,
I,g,
",Q.Jlst
'f...---,
19,
"P_~7th
f------,
I,g,
"P_~8th
f------,
9th
Continued
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