52
ATAPI / ATAPI-4:
Advanced Technology Attachment Packet Interface*; part of the PC’s
IDE*/E-IDE* interface* that provides additional commands for controlling IDE* peripherals (e.g.
DVD-R/RW or CD-ROM/-R/-RW writers). The “-4” suffix denotes a later (faster) ATAPI
generation.
BIOS:
Basic Input/Output* System; as part of your PC’s system software, the usually invisible
though critical BIOS is mainly responsible for loading/executing the PC’s operating system and
constitutes the lowest-level interface* to internal and external peripherals (e.g. keyboard,
mouse, printer, DVD-R/RW or CD-ROM/-R/-RW writers, etc.); although it is possible to access
the BIOS yourself, this is best left to computer experts or programmers.
BUFFER UNDERRUN:
The inability of the PC’s “buffer” (i.e. an interim store of information)
to supply a continuous stream of data that matches the speed of writing from the host* device
to the recording device during DVD-R/RW writing operations; the problem is common
to current CD technology and often results in ruined CD-R.
BUS:
part of a chip or circuit board that serves as a route for exchanging signals between a
PC’s various functional units.
CABLE SELECT/CS:
by choosing this jumper setting when installing the drive in a
CS-compatible PC, the TDK DVD-R/RW writer automatically selects the correct master/slave*
configuration using a signal from the IDE* interface*.
CAV:
abbreviation of Constant Angular Velocity. A term referring to the speed of disc reading or
writing. At constant angular velocity, a disc spins with the same number of revolutions no matter
which track the laser reads or writes. At CAV, recording density increases from the outer to the
inner tracks of a disc. See also CLV.
CLV
: abbreviation of Constant Linear Velocity. A term referring to the speed of disc reading or
writing. At constant linear velocity, a disc’s number of revolutions increases from the outer to
the inner tracks during reading or writing. At CLV, all tracks feature the same recording density.
See also CAV.
Glossary of Terms
52