Before revision: Usage Optical discs are often stored in special cases sometimes called jewel cases and are most commonly used for digital preservation, storing music (e.g.
After revision: UDF 2.60 specification: 6.11.4 UDF Bridge format.UDF 1.02 specification: 6.9 Requirements for DVD-ROMUsage Optical discs are often stored in special cases sometimes called jewel cases and are most commonly used for digital preservation, storing music (e.g.