Usage
According to the Internet Movie Database, as of October 30, 2006, there are 18,313 DVDs with sufficient information in the database that are packaged in a keep case.
In the days before video games were released on optical media, cartridges would sometimes come packaged in specially designed plastic keep cases with lugs inside to hold the instruction manual, as opposed to pressboard boxes (which buyers seldom kept along with the game, and are therefore very collectible today). Cartridges and cards for the Sega Master System platform were the first video games to be packaged in any kind of keep case. The vast majority of Sega Genesis games would come in a plastic keep case, but were later packaged in pressboard boxes, as a cost-cutting measure.
Before the standard, commonly used DVD case was invented, early CD-ROM based video games such as Sega CD and early PlayStation titles, (more in particular a lot of the launching titles at the time) would often come in a taller keep case, which resembled a thicker and taller jewel case. These have been reputed to break very easily.
Today, all major console-based video game software is packaged in some sort of keep case, including Nintendo DS cartridge titles, and Sony PSP titles. Blu-ray discs and PlayStation 3 games come in a shorter and slightly thinner keep case than their predecessors. Blu-ray movie cases are almost always a transparent blue colour while PlayStation 3 games are colorless transparent (opaque red for the "Greatest Hits" re-releases in North America).
Grindcore band Discordance Axis were known to use keep cases instead of jewel cases for their albums. These cases also contained large big book
Read more about this topic: Keep Case
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