pctechguide.com

CD-ROM XA

As a separate extension to the Yellow Book introduced in 1988 by Philips, Sony and Microsoft, the CD-ROM XA specification comprises the following:

  • Disc format including Q channel and sector structure using Mode 2 sectors
  • Data retrieval structure based on ISO 9660 including file interleaving which is not available for Mode 1 data
  • Audio encoding using ADPCM levels B and C
  • Video image encoding (i.e. stills)

While the original CD-ROM format is known as Mode 1, and CD-ROM XA is known as Mode 2. It is generally consider with the ISO 9660 logical format but designed to add better audio and video capabilities so that CD-ROM could more easily be used for multimedia applications. CD-ROM XA was abandoned as an independent multimedia format, but the physical format was used in the CD-I Bridge formats Photo CD and VideoCD plus Sony’s Playstation.

Filed Under: CD-ROM

Latest Articles

Input Device Interfaces

Like the original IBM PC, 1984's IBM PC AT keyboard used a full-size 5-pin DIN connector. IBM's second-generation PS/2 PCs, first released in 1987, introduced a new specification for the keyboard and mouse interfaces, which … [Read More...]

Fax Modems

Nearly all modems now include some sort of fax capability and usually come with bundled software which provides a PC with most of the functionality of a fax machine. Digital documents can be converted to analogue, ending up as an image file (if the receiver is another fax/modem), or a printed … [Read More...]

Best DNS Providers of 2021 – Part 3

Here is the last installment of the best DNS providers of 2021. We hope it helps! DNS.Watch Okay, all that stuff about adding layers of customization and blocking some pages is fine. But you also have other alternatives like DNS.Watch, who prefer to offer you a full speed experience without … [Read More...]

Guides

Recent Posts