J-card
Videos
A J-card is the paper card inserted in the plastic storage case of most audio cassette releases, as well as being latterly wrapped around the outside of many Blu-ray and DVD steelbooks and similar spe
A J-card for a blank compact cassette
CD-R
Videos
CD-R is a digital optical disc storage format. A CD-R disc is a compact disc that can only be written once and read arbitrarily many times.
J-card
…J-card gets its name from being folded into the shape of the letter J (when viewed from the side) to fit inside the cassette's case. Today, custom made CD-R covers are often called J-cards. Similarly styled covers were used in CD covers in the 1990s for single cases and are still used today. Cassette tape…
Assorted CD-Rs
Isolated data layer of a CD-R
Photomicrograph of the groove in a CD-R disc
An example of a CD-R burned in 2000 showing dye degradation in 2008. Part of the data on it has been lost.