Updated 14/11/2012Home » Video Glossary » Joliet


An extension to ISO 9660, Joliet is the specification for the file system (including file names) for the content on a compact disc (CD); it allows file names up to 64 characters in length (including spaces) and the use of Unicode characters in file names (sometimes needed for internationalization). Written by Microsoft, Joliet is fully supported in Windows 95 and later Windows operating systems (except Windows NT prior to its version 4). In operating systems (such as Windows 3.1) that support only eight-character file names, a longer file name on the CD is truncated into an eight-character name using a tilde (~) followed by a unique number as the last characters in the name.