Why does it say error when i put on song onto my gpx mp3 player?

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SEVERAL POSSIBILITIES:
* You downloaded protected music on your Windows 98/98SE, Windows 2000, Windows XP computer using Windows Media Player 9. Music was purchased online or the music was ripped form your own audio CD with Copyright Protection turned ON.
o You must use Windows XP and Windows Media Player 10 for online purchased songs.
o You must turn OFF Copy Protection on your Windows Media Player 9 before ripping your audio CDs into WMA files
* You downloaded protected music to your MP3 player using your Windows XP computer and Windows Media Player 10 with your player in USB mode. Music was downloaded from the internet, purchased or subscribed, or it was ripped from your own audio CD with Copyright protection turned ON.
o You have to use your MW3836 in MTP mode.
-Tha Mp3 Doctor