Nero Express 9 Manual page 72

Glossary
pending on th e complexity of the audio signal. The bit rate used can be used as a measure
of quality. The higher the bit rate, the better the quality, but also the more memory required.
MPEG-1
The Moving Picture Experts Group def ined this industry standard for video and audio co-
d ecs. MPEG-1 is part of the MPEG compression family and has the highest compression ra-
te. MPEG-1 is the format for video CDs.
MPEG-2
The Moving Picture Experts Group defined this industry standard for video and audio co-
decs. There is little difference between MPEG-1 and MPEG-2: MPEG-2 is a broadcast stan-
dard and better for televisions that are interlaced. MPEG-2 is used as a video format for
DVDs.
MPEG-4
The Moving Picture Experts Group defined this industry standard for video and audio co-
decs. MPEG-4 is the latest MPEG standard for video and audio. MPEG-4 combines several
functions from MPEG-1, MPEG-2 and other standards. Nero Digital™ Video and Nero Digi-
tal™ Audio are based on this standard.
Multisession
A multisession refers to completing a disc in multiple cycles. After a first session has been
written to the disc, information can then be added in another record because the disc has not
been finalized.
On-the-fly
On-the-fly refers to a method for copying to a disc. The data is transferred directly from the
original storage location to the disc to be burned. To do this, Nero uses a compilation, a
small file that simply refers to the transferred data.
SecurDisc
SecurDisc refers to a security technology that protects data carriers from unauthorized ac-
cess.
SVCD
A Super Video CD, abbreviated SVCD, is a CD format for movie files that uses the MPEG-2
video code to save. As a result, this disc format saves video files in a quality similar to an S-
VHS video and can save up to 30 or 40 minutes of video with stereo sound on a 650 or 700
MB CD. SVCDs can be played back on an increasing number of DVD players and on the
PC, if your PC has the appropriate software and a drive that can read CD-R/RW discs.
Track-At-Once
Track-At-Once refers to a write method in which each track is written to the disc individually.
The writing process is interrupted briefly after each track, i.e. the laser starts again for each
track. With this write method, it is only possible to continue writing to a DVD sometimes and
at a later stage. There is a pause of at least 27ms between tracks, which can be disruptive
for Audio CDs.
Nero Express 72