The simplest method to accomplish this task is to drag and drop the files the from source location to the destination location.
Plug your MP3 player \SanDisk,
copy the files (music\ document) from the destination location and
paste them into the drive.
Some MP3 player comes with software; you can use the software to copy the songs from the computer to an MP3 player. You may want to refer the documentation that came
along with it.
Let us know if this helps
Thanks and Regards:
Ajay K
Microsoft Answers Support Engineer
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