Adaptable cassette and disc pack storage system

Apparatus for use with a drawer or other type of platform which has a substantially horizontal bottom, a front, a rear, and first and second opposite sides, and which defines a substantially vertical centerplane lying halfway between said sides, for holding first packs and second packs each pack comprising an information storage device and a largely rectangular package ohlding the device, comprising:

• first and second pack adaptors detachably mounted to said opposite sides of said drawer, each adaptor including ribs spaced apart along the length of one of said drawer sides which form slots for closely holding the ends of said first packs and the ends of said second packs;
• said ribs and the walls of said slots are angled a plurality of degrees from the vertical direction;
• said pack adaptors are substantially mirror images of one another, and are detachably mountable in a first position wherein said first and second adaptors lie at said first and second sides of said drawer and in a second position wherein said first and second adaptors lie respectively at said second an first sides of said drawer, the slots of said adaptors opening towards the opposite side of the platform in either of said positions, and the ribs and slots of said adaptors angled in opposite directions from the vertical at said different positions, and with said ribs allowing a pack to lie stably angled in only one of said opposite directions from the vertical when each pack adaptor lies at a predetermined one of said sides of said drawer, whereby to allow one type of pack to be angled upward toward the front and another type toward the rear;
• each of said adaptors having a second set of ribs projecting opposite said first mentioned ribs, each adaptor mountable in a position wherein said second set of ribs extends towards said centerplane.