EXP Computer EXP CD-Rewriter Bundled S_W - Manual (Page 119)

Glossary
Glossary-5
ISO 9660 Interchange Levels
There are three methods of re-
cording and naming files on CD
under the ISO 9660 standard.
They are organized in three nest-
ed, downward-compatible
levels.
Level 1 (the most restrictive):
•
Each file must be written on
CD as a single, continuous
stream of bytes -- files may
not be fragmented or
interleaved.
•
A filename may not contain
more than eight
d-characters.
•
A filename extension may
not contain more than three
d-characters.
•
A directory name may not
contain more than eight
d-characters.
Level 2:
Again, each file must be written
on CD as a single, continuous
stream of bytes.
Level 3:
There are no restrictions.
ISO 9660 Image
Also known as an image,
CD-ROM image, disc image, or
real ISO image. A single large file
which is an exact representation
of the whole set of data and pro-
grams as it will appear on a CD,
in terms of both content and log-
ical format
.
ISRC
International Standard Record-
ing Code. The code consists of:
Country Code (2 ASCII charac-
ters), Owner Code (3 ASCII char-
acters), Year of Recording (2
digits), Serial Number (5 digits).
J
Joliet
A standard developed by
Microsoft for Windows 95 that
allow CDs to be recorded using
long filenames (it also allows for
using the Unicode international
character set). For files recorded
to CD, Joliet allows you to use
filenames up to 64 characters in
length, including spaces. Joliet
also records the associated
DOS-standard name (8 + 3 char-
acters) for each file so that the CD
may be read on DOS systems or
earlier versions of Windows.
WARNING:
Only versions of Windows NT 4.0
or later can read Joliet CDs.
L
Lead-In
An area at the beginning of each
session on a recordable CD that
is left blank for the session’s Ta-
ble of Contents
. The lead-in is
written when a session is closed,
and takes up 4500 sectors on CD
(= 1 minute, or roughly 9 MB).
The lead-in also indicates wheth-
er the CD is multisession
, and if
the CD is not closed, the next
writable address on the CD.
Lead-Out
The area at the end of a session
that indicates that the end of the
data has been reached; there is
no data written in the lead-out.
The first lead-out on a CD is 6750
sectors (= 1.5 minutes, about 13
MB) long; any subsequent lead-