Slipcase
From Wikipedia, the free encyclopedia
A slipcase is a five-sided (or sometimes four-sided) box, usually made of high-quality cardboard, into which books or book sets are slipped for protection. Special editions of books are often slipcased.
Slipcases may be issued for compact discs, but these serve an aesthetic rather than protective purpose. They are often used in packaging for special edition releases of CDs.