Of course, MP3 and WAV are not the only audio file extension out there - you may run across WMA, OGG, VQA, and many more, depending on your operating system.
It plays MP3, WMA, secure WMA, and OGG Vorbis formats and supports many online music services such as Napster and MSN Music.
They give you several options for how you want to listen to their tunes, including MP3, Ogg Vorbis, Real Audio, Windows Media, and QuickTime.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.