ISO 9660 - Extensions

Extensions

There are common extensions to ISO 9660 to deal with the limitations. Rock Ridge supports the preservation of POSIX (Unix-style) permissions and longer names; Joliet supports names stored in Unicode, thus allowing almost any character to be used, even from non-Latin scripts; El Torito enables CDs to be bootable on PCs; Apple ISO 9660 Extensions adds support for Mac-OS-specific file characteristics such as Resource forks, file backup date and more.

ISO 13490 is basically ISO 9660 with multisession support.

For operating systems which do not support any extensions, a name translation file TRANS.TBL must be used. It should be located in each directory, including the root directory. This is now obsolete, since few such operating systems are in use today .

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