Quote:
Originally Posted by Solitaire1
I know that a Red Book CD doesn't have a file structure because at the time it was created that wasn't a concept. A Red Book CD stores the audio as one continuous groove, similar to the way audio is stored on an LP/45/78. It also contains a Table of Contents (TOC) that tells it where each track is on the disc. This is why Red Book CDs are gapless, the audio itself doesn't have gaps (unless silence is put in the source audio).
|
While the data groove is a continuous spiral of sectors (or frames), each track recorded in this spiral is discrete and, at least according to the original Red Book specs, a ~2 second gap of silence is required between tracks. Any audio CD lacking this silence between tracks is off spec though I don't know of any CD players which are adversely affected by this.
CD-ROM came later with the Yellow Book standard, but it does not include a filesystem spec. ISO 9660 is a separate standard for a filesystem structure on CD-ROM, and is the origin of the use of .iso as a filename extension for CD-ROM images.
Then Orange Book gave us multi-session discs.