User manual

Glossary
Nero InfoTool
12
5 Glossary
Advanced SCSI Programming Interface (ASPI)
The advanced SCCI programming interface is the interface between the software, the SCSI
(Small Computer System Interface) card and the operating system of a PC. This permits
communication between the SCSI device (e.g. a SCSI scanner) and the SCSI card.
However, ASPI drivers are also required for ATA, ATAPI, USB and FireWire interfaces.
Firmware
Firmware is software that has been installed on hardware during production (e.g. recorder,
USB device, etc.). It is used for communication between the respective hardware and other
software, e.g. when a USB device is connected to a PC.
Read Speed
The read speed of a drive is a factor of the speed that the laser needs in order to read the
data on an optical storage medium, e.g. 8x or 16x speed.
SAO
The session-at-once method is mainly used for recording on CD EXTRA. A first session with
various audio files is recorded in a single process without switching off the laser. However,
the CD is not closed, which means you can still write more data to it. Afterwards a second
(data) session is written and then the disc is closed.
Track-At-Once (TAO)
Track-at-once refers to a burn method in which each track is burned to the disc individually.
The burn process is interrupted briefly after each track, i.e. the laser starts again for each
track. With this burn method, it is only possible to continue writing to a DVD sometimes and
at a later stage. There is a pause of at least 27 ms between tracks, which can be disruptive
for Audio CDs.
Write Speed
The write speed indicates the speed at which a drive can write data to the optical storage
medium, e.g. 8x or 16x speed.