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ISO 9660 (International Standards
Organization) is The file and directory naming standard
that refined *High Sierra to be readable on any platform,
regardless of the content format. ISO-9660 specifies
each file name consist of three components: name, extension
and version. A name or extension may consists of zero
or more characters of the set [A thru Z], [0 thru 9]
and the _ (underscore). The version number ranges from
1 to 32767. There are three levels of this standard
defined by ISO-9660: Files are listed in alphabetical
order. A directory name consists of one or more characters
of the set [A thru Z], [0 thru 9] and the _ (underscore).
The Volume Name of the disc can contain up to 11 of
the set [A thru Z], [0 thru 9] and the _ (underscore).
Directories are sorted alphabetically. File extensions
and levels supported by the ISO 9660 specification are:
*High Sierra - High Sierra was the first attempt at
making the Yellow Book standard readable on any computer
platform. No longer used, creating a disc for general
distribution with High Sierra could create a disc that
is not playable on most drives. ISO 9660 Level 1 - Known
as the "DOS" Character set, the number of
characters is restricted to 8 and the number of characters
of the extension is restricted to 3. Also referred to
as 8.3 (eight-dot-three). ISO 9660 Level 3 - The total
length of the name and extension is restricted to 30
characters (excluding the point). ISO 9660 (Joliet)
- The total length of the name and extension is restricted
to 64 characters. ISO 9660 Rock Ridge Interchange Protocol
- Permits UNIX and variants to use the naming standards
of the UNIX platform and performs like a native volume.
Hybrid - Permits "Partitioning of the disc"
to allow the disc to perform natively in two or more
platforms, operating systems, or environments.
HFS
The Apple HFS standard creates CD-ROMs that perform
like native Macintosh volumes. Discs manufactured under
this specification will only function on Apple platforms.
The total length of the name is restricted to 31 characters.
No naming restrictions
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