ISO 9660 format
The most common international standard for the logical format for files and directories on a CD-ROM. Some other common logical formats such as Joliet and Rock Ridge are extensions of ISO 9660.
Joliet is an extension of the ISO 9660 standard, developed by Microsoft to allow CDs to be recorded using long file names, and using the Unicode international character set. Joliet allows you to use file names up to 64 characters in length, including spaces.
An extension of the ISO 9660 file system designed to support Unix file system information (such as longer file names and deeper directory structures).