These include CD-ROM music albums containing video files viewable on a personal computer, or feature film Blu-rays containing interactive content when used with a PlayStation 3 game console.
One reason for the hybrid format is the restrictions of ISO 9660 (filenames of only eight characters, and a maximum depths of eight directories, similar to the Microsoft FAT file system).
However, with the advent of faster computing hardware and vastly simplified automated extraction and encoding tools (e.g. iTunes, Rhythmbox, etc.)
However, such hybrid discs do remain in a commercial setting as a digital rights management enforcement technique, where encrypted compressed copies of the digital audio are provided with proprietary software for listening in a computer disc drive, while the CD-DA is included for playback in stand-alone CD players.
Examples include Tekken Hybrid, Macross Frontier: Itsuwari no Utahime and Lagrange: The Flower of Rin-ne -Kamogawa Days-.