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.
[3] The CD-ROM standard, however, does not mention the term "mixed mode", nor does it describe any particular order of data and audio tracks on the disc.
Several games for the PC, Amiga, PlayStation, Sega Saturn, and Dreamcast are mixed mode CDs as well.
Bonus audio tracks might also be included on the disc as Easter eggs for the player to find when the game software is not running.