File and Directory Naming

All SIGGRAPH CD-ROM publications are multi-platform (Macintosh / Windows / UNIX) ISO-9660/Macintosh hybrid CD-ROMs, and follow the ISO-9660 Level 1 standard for maximum portability across platforms.

Certain guidelines must be followed when naming files and directories under the ISO 9660 standard:

     * Filenames are limited to eight lower-case characters, a dot, and a three character extension. The extension is optional.
     * Filenames must contain lower case letters, numbers and underscores.
     * Directory names are limited to eight lower-case characters.
     * Filenames and directory names cannot contain any other characters.
     * Up to eight levels of subdirectory nesting are supported.

It is important that, for a complex project involving a number of external files -- a set of HTML documents, for example -- that the external files are named correctly and consistently. If an invalid filename is included in another document (an HTML link or an image imported by reference into a document, for example) and that file is subsequently renamed, the link will be broken.

The following examples show valid and invalid filenames:

VALID
sponge.doc
fig_17a.tif
database.htm
README

INVALID
Sponge.doc
figure_17a.tif
database.html
README!

REASON
mixed letter case
too many characters
too many characters
illegal "!" character

 
The following examples show valid and invalid directory names:
VALID
DATABASE
figures
datadir

INVALID
Database
my figures
database.dir

REASON
mixed letter case
too many letters & space
cannot have dot-extension

 
Certain standard filename extensions should be used in the preparation of your electronic material for consistency and ease of use. The following examples show a number of these extensions and their file types:
 
EXTENSION
.mov
.mpg
.pdf
.txt
.gif
.tif
.jpg
.ps
.htm

FILE TYPE
QuickTime animation
MPEG animation
Adobe Acrobat PDF
ASCII text
GIF image
TIFF image
JPEG image
PostScript document
HTML document

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