CD Formats

Keeks

Anyone know the difference between ISO-9660 and Joliet cd formats.

Blitzkrieger

afaik ISO can be read by (just about) any CD-ROM device. Haven't a clue about the other one

Kali

search on google revealed this helpful page: http://bmrc.berkeley.edu/people/chaffee/jolspec.html

but if thats too much effort heres the basics:

Joliet gets rid of filename length, tree depth, character set and directory name format limitations that are found in ISO-9660.

Keeks

Cheers Kali

Lump

ISO9660

<font face="Verdana, Arial" size="2">
An ISO 9660 file system is a standard CD-ROM file system that allows you to read the same CD-ROM whether you're on a PC, Mac, or other major computer platform. The standard, issued in 1988, was written by an industry group named High Sierra. Almost all computers with CD-ROM drives can read files from an ISO 9660 file system.
There are several specification levels. In Level 1, file names must be in the 8.3 format (no more than eight characters in the name, no more than three characters in the suffix) and in capital letters. Directory names can be no longer than eight characters. There can be no more than eight nested directory levels. Level 2 and 3 specifications allow file names up to 32 characters long.
</font>

Joliet

<font face="Verdana, Arial" size="2">The Joliet specification utilizes the supplementary volume descriptor (SVD) feature of ISO 9660 to specify a set of files recorded within the Unicode character set.

The ISO 10646 character set specification may be identified by an ISO 2022 escape sequence. By recording this escape sequence in an ISO 9660 SVD, this technique for identifying the Unicode SVD is compliant with the ISO 9660 specification. It also retains interchange by not disrupting the files referenced through the primary volume descriptor (PVD).

All that remains is to resolve minor technical ambiguities within ISO 9660 which arise as the result of the use of wide characters. </font>

There ya go, bit late but sure

John



[This message has been edited by Lump (edited 15-01-2001).]

Keeks

Better late than never!

Cheers man!

---

Win95/98/ME: 32 bit extensions and a graphical shell for a 16 bit patch
to an 8 bit operating system originally coded for a 4 bit microprocessor
written by a 2 bit company, that can't stand 1 bit of competition.