After the indexes, a set of data files occupy the disc. This is the same naming convention used by the MSDOS operating system.Īdditional file system headers, for formats such as Joliet and UDF, can co-exist on a disc without affecting the readability of the ISO 9660 format. The file and directory naming convention consists of 8 characters, a period, and 3 more characters.
The header points to areas of the disc that store the file names in ISO 9660 format. For example, High Sierra discs use the string CD-ROM0001 and Compact Disc Interactive format uses CD-I0001. Other derived formats also begin at sector 16, but use another string for the volume header. The format begins at sector 16 with the volume header, CD0001 the remainder of the header follows. The ISO 9660 format is published by the International Organization for Standardization (ISO). The format is recognized on several operating systems, including MSDOS, the Mac OS, UNIX, and the Windows operating system. The ISO 9660 format is the original standard file system for CD data discs. IMAPI supports three file system formats: ISO 9660, Joliet, and UDF.
