I, too, have heard the term "jewelcase" used to describe the little flat clear-plastic box in which both CD's and DVD's are sold. That never made any sense to me. Do the vendors think so highly of their product that they think it ought come encased in something fit for diamonds and rubies? In rating neologisms, I'd give "keepcase" a high C or low B and "jewelcase" an F.

Odd that the American Dialect Society never solicited me for membership. Who tattled?