Resolved Question: Can I put My music on this MP3 player?

Can I put music from my Windows Media Player on this MP3 player(Link Below) or do I have to use a Online music store?

http://www.audio-discounters.com/mp705-4g.html
or this one

http://www.kaboodle.com/reviews/ematic-1.5-color-1gb-mp3-video-player-black