MP3 files are an ideal music format because their relatively small size allows for as many as 120 songs, and often more, to be burnt onto a single CD-R disc. This is a good way to have a huge selection of music you can play at one time without having to change the disc in your CD player. A disc in audio CD format (CDA), however, can fit approximately 17 or 18 songs per disc. If you plan to listen to your songs on your computer or an iPod, MP3 format is your best choice. But since many stereo systems don't read MP3 files, you may need to convert your MP3 music to audio CD format.
Download and install Windows Media Player or another software product that can burn MP3 files to disc and has the capability to convert formats. Most PCs have Windows Media Player installed already.
Open Windows Media Player. From the menu bar across the top, click "Burn" and select "Audio CD" from the drop-down menu.
Browse to the folder on your computer where the MP3 files that you want to convert are located. Drag the MP3 files you wish to convert to audio CD format into the burn list in Windows Media Player.
Arrange the songs in the order you want them to appear and click "Start Burn." The MP3 files will be converted to audio CD format (CDA) and burnt to disc.