An information retrieval system uses phrases to index, retrieve, organize and describe documents. The layers are then mixed and then processed by a processor to provide to a recorderburner to provide a compact disc in the preferred embodiment. The detection devices including a detection lens system disposed in the detection beam path and an optical detection element spaced from a front lens of the detection lens system and independently adjustable thereof. A cushion is placed and held in the interior of the frame member, where the cushion preferably has a height substantially equal to or less than the height of the frame member.