Click "Start" in the lower left corner of your computer screen.
Highlight the "Programs" category and click on "Windows Media Player."
Click the "Burn" tab in Windows Media Player and drag the saved MP3 files you want to put on a blank CD into the "Burn List."
Click the "Start Burn" button when finished adding all the MP3 files you want to the "Burn List."
Insert a blank CD-R (CD recordable) into your computer's CD burner and the saved MP3 files will be burned onto the blank CD.
Click the "iTunes" icon in the dock.
Click "File" and select "New Playlist" after iTunes has opened.
Drag the saved MP3 files you want to put on a blank CD into the new playlist that appears in the column on the left side of iTunes.
Highlight the new playlist and click "Burn Disc" when finished adding saved MP3 files to it.
Click "Burn" to confirm this action. Insert a blank CD-R into your computer's CD burner and the saved MP3 files will be burned onto the blank CD.