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2. Optical disc packaging - Wikipedia

   en.wikipedia.org/wiki/Optical_disc_packaging

   Jewel case A jewel CD case. A jewel case is a compact disc case that has been used since the compact disc was first released in 1982. It is a three-piece plastic case, measuring 142 by 125 by 10 millimetres (5.59 in × 4.92 in × 0.39 in), a volume of 177.5 cubic centimetres (10.83 cu in), which usually contains a compact disc along with the liner notes and a back card.

3. CD-RW - Wikipedia

   en.wikipedia.org/wiki/CD-RW

   CD-RW ( Compact Disc-Rewritable) is a digital optical disc storage format introduced in 1997. [citation needed] A CD-RW compact disc (CD-RWs) can be written, read, erased, and re-written. CD-RWs, as opposed to CDs, require specialized readers that have sensitive laser optics. Consequently, CD-RWs cannot be read in many CD readers built prior to ...

4. Compact Disc and DVD copy protection - Wikipedia

   en.wikipedia.org/wiki/Compact_Disc_and_DVD_copy...

   Compact Disc and DVD copy protection. CD/DVD copy protection is a blanket term for various methods of copy protection for CDs and DVDs. Such methods include DRM, CD-checks, Dummy Files, illegal tables of contents, over-sizing or over-burning the CD, physical errors and bad sectors. Many protection schemes rely on breaking compliance with CD and ...

5. DVD - Wikipedia

   en.wikipedia.org/wiki/DVD

   Such discs are a form of DVD-ROM because data can only be read and not written or erased. Blank recordable DVD discs (DVD-R and DVD+R) can be recorded once using a DVD recorder and then function as a DVD-ROM. Rewritable DVDs (DVD-RW, DVD+RW, and DVD-RAM) can be recorded and erased many times.

6. Compact Disc Digital Audio - Wikipedia

   en.wikipedia.org/wiki/Compact_Disc_Digital_Audio

   v. t. e. Compact Disc Digital Audio ( CDDA or CD-DA ), also known as Digital Audio Compact Disc or simply as Audio CD, is the standard format for audio compact discs. The standard is defined in the Red Book, one of a series of Rainbow Books (named for their binding colors) that contain the technical specifications for all CD formats.

7. AOL Mail

   mail.aol.com/?icid=aol.com-nav

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

8. Optical disc - Wikipedia

   en.wikipedia.org/wiki/Optical_disc

   This form of optical disc was a very early form of the DVD (U.S. patent 3,430,966). It is of special interest that U.S. patent 4,893,297, filed 1989, issued 1990, generated royalty income for Pioneer Corporation's DVA until 2007 —then encompassing the CD, DVD, and Blu-ray systems. In the early 1960s, the Music Corporation of America bought ...

9. Seven-segment display - Wikipedia

   en.wikipedia.org/wiki/Seven-segment_display

   A seven-segment display is a form of electronic display device for displaying decimal numerals that is an alternative to the more complex dot matrix displays. Seven-segment displays are widely used in digital clocks , electronic meters, basic calculators, and other electronic devices that display numerical information.