User Guide

Quickstart NeroNET Glossar • 72
 DVD+RW: This is a rewritable DVD which can be read by almost any standard
DVD-ROM drive or DVD player. DVD+RW drives can also read and write to
DVDs which are not rewritable. DVD+RWs have a storage capacity of 4.7 GB.
The difference between these and DVD-RAMs is that they can also be played
in standard DVD-ROM drives and standalone DVD players.
 DVD-Video: DVD-Videos contain full-length feature films with high audio and
video quality. The videos are encoded in MPEG-2 format.
Additional information:
 The UDF (Universal Disc Format) file system is used on DVDs. However the
data can also be accessed via an ISO9660 data system which is also included
on the DVD.
 DVD format no longer corresponds to any of the formats specified in the
colored books.
El Torito
El Torito is a specification which describes the structure of a CD used to boot a
PC. A PC with a suitable BIOS can start the operating system from the CD and
therefore does not need a floppy disk or a hard disk.
Finalizing
Finalizing is similar to fixing, but applies to the entire disc. No additional data can
be written to a finalized disc. When you burn a CD or DVD in DAO mode, the disc
is automatically finalized. However, the data on a finalized CD-RW can still be
deleted (by choosing the Erase ReWritable item from the Recorder menu).
Firmware
The firmware in recorders (CD/DVD-ROM drives) functions as the operating
system of the drive and contains instructions which determine how the drive
reacts to commands from the computer. The firmware of the latest recorders can
generally be upgraded. For example, Ahead Software AG's website contains a
page with links to the latest firmware versions. To see the firmware version of
your drive, use the Choose Recorder menu item on the Recorder menu in Nero.
Fixing
Fixing is similar to finalizing, but applies only to an individual session rather than
to the whole CD. Fixing means closing the session which has just been written,
so that it can be read. To do this, the lead-in and lead-out data are written to the
disc. In the current version of Nero, sessions are always fixed automatically.
Image file
This is a writing process which involves creating a physical image of a file. The
contents of the image correspond exactly to the data which will be written to the
CD.