Alan Freedman -- The Computer Language Company - Computer Desktop Encyclopedia
Computer Desktop Encyclopedia
Longest-Running Tech Reference on the Planet

A CDE Definition

You'll love The Computer Desktop Encyclopedia (CDE) for Tech Term of the Day (TTOD)



See track-at-once.


To record all the data on a CD-R disc one track at a time. The laser is turned off after each track, which produces a two-second gap. The track-at-once feature, which was added shortly after the first CD-R drives were introduced, enables songs and data to be written at different intervals. The lead-in sectors that are written at the beginning of each session contain the location where additional data can be placed on the disc.

For audio CDs, the session can be left open in order to mix songs from different sources, but it must be closed in order to play the disc. If the disc is closed, no more songs or data can be written to the medium. See disc-at-once and UDF.

CD-R Options
This dialog box from Adaptec's EZ CD Creator software shows disc-at-once and track-at-once options before "burning" a disc. The "Leave Session Open" option at the top is ghosted in this dialog, because a data CD has been selected. Were an audio CD being recorded, it would be an available option.

Personal Use Only

Before/After Your Search Term
tandem switchtap
tandem/toll officetape
tandem/toll switchtape automated bonding
Tandytape automation
Tangotape backup
Tango 2000tape cartridge
Tannertape cassette
TANOStape drive
TANSTAAFLtape dump
tantalum capacitortape head

Terms By Topic
Click any of the following categories for a list of fundamental terms.
Computer Words You Gotta KnowSystem design
Job categoriesUnix/Linux
Interesting stuffPersonal computers
InternetIndustrial Automation/Process Control
Communications & networkingAssociations/Standards organizations
HistoryDesktop publishing
ProgrammingHealthcare IT
System design