As noted in Chapter 3, My Music relies heavily on the Windows Media Player program in Windows XP (see Figure 3.8). In fact, when you open My Music for the first time, you will be prompted to first use Windows Media Player to populate your media library.
caution
Occasionally, Media Center will display a codec error when playing back a digital audio file. If this happens to you, try opening the file in Windows Media Player, launched from the Windows XP desktop. You may need to configure Windows Media Player to automatically download codecs, but if the correct codec is available online, your file should play.