The official FAQ of the Internet DVD newsgroups. Its primary emphasis is on video, but there is a section on data DVDs that describes each format.

Lists all documents regarding the ECMA standards, including optical storage and data compression.

This is the primary industry association for DVD. Site resources include technology briefs, conference schedules and news archives.

The standard FAQ for CD-R and CD-RW. Besides general questions and answers, its major sections cover encoding, media, hardware, software and common problems. Updated monthly.

OSTA is an industry group promoting use of writable optical storage technology. This is the home of the Universal Disc Format (UDF) specification and other technology references.

General information source with links and a few articles about the CD and DVD industry. Includes an CD bibliography.

Has essential tools for CD/DVD drive and media quality control and a good explanation of CAV, CLV, Z-CLV and P-CAV technology.

The technology behind the recordable CD.

News and technology articles related to writable CDs. Includes a list of CD-R dye types and manufacturers, and a reference list of CD-writing software.

Dedicated to the DVD+RW recordable DVD format.