A mixed mode CD is a compact disc which contains both data and audio in one session.[1] Typically the first track is a data track while the rest are audio tracks. The most common use for mixed mode CDs is to add CD-quality audio to video games on a CD.
The term "enhanced CD" is sometimes used to refer to mixed mode CDs,[2] though it is most commonly used to refer to either a more general category of formats that mix audio and data tracks, or to the particular Enhanced Music CD format.[2]