Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. DataPlay is an optical disc system developed by DataPlay Inc. and released to the consumer market in 2002. Using very small (32mm diameter) disks enclosed in a protective cartridge storing 250MB per side, DataPlay was intended primarily for portable music playback, including both pre-recorded disks and user-recorded disks (and disks that combined pre-recorded information with a writable area). DataPlay included an elaborate digital rights management system designed to allow consumers to "unlock" extra pre-recorded content on the disk, after the initial purchase.

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