Nextar MA791 - Manual (Page 11)

Connection and Downloading
Connect to PC
Plug the attached USB cable into your PC and connect the other end to the MP3 player.
Press Play/ to switch the USB mode between MSC mode and MTP mode.
Downloading files
When you have connected the player to your PC, select the desired files then right-click and select Copy.
You can now paste them into the player by right-clicking on the player and selecting Paste.
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