What is the difference between disc-at-one and track-at-once?
There are two basic ways of writing to a CD-R. Disc-at-once writes the entire CD in one pass, possibly writing multiple tracks. The entire burn must complete without interruption, and no further information may be added. Track-at-once allows the writes to be done in multiple passes. There is a minimum track length of 300 blocks (600K for typical data CDs), and a maximum of 99 tracks per disc, as well as a slight additional overhead associated with stopping and restarting the laser. The disadvantage of track-at-once is that most audio CD players will play the run-in and run-out blocks between tracks, resulting in slight but annoying clicks between tracks.
