McCormick, John A. (1994). The New Optical Storage Technology: Including Multimedia, CD-ROM, and Optical Drives (2nd ed.). Burr Ridge, Ill.: Irwin Professional. p. 47. ISBN1556239076. OL1731548M.
Blum, Brian (1995). Interactive Media Essentials for Success. Emeryville, Cal.: Ziff-Davis Press. p. 43. ISBN9781562763473. OL3747286W.