Sony WALKMAN NW-WM1A Help Manual page 71

Note
Observe the following precautions. Otherwise, the Walkman may not be able to play the files.
Do not change the names of the root folders (such as [MUSIC]).
Do not transfer the files to folders other than [MUSIC].
Do not disconnect the USB cable during data transfer.
Do not format the memory of the Walkman on the computer.
The Walkman may not display music information for some content correctly depending on the language setting on the Walkman.
Transferred content is limited to private use only. Use of content for other purposes requires the permission of the copyright holders.
The contents of the Help Guide may be subject to change without notice due to updates to the product's specifications.
Related Topic
Installing Content Transfer (Mac)
Preparing music content
Purchasing High-Resolution Audio content
Playing music
4-593-855-11(1) Copyright 2016 Sony Corporation
63