Modern information carriers encompass optical discs (CDs and DVDs) and magnetic media such as tapes (audio, video, computer) and disks. These carriers differ from traditional materials in that the information they contain cannot be viewed directly, it can only be accessed by playing the carriers on a machine. And for the carriers to play properly, they must be in relatively good condition. This Technical Bulletin discusses the myriad types of damage that can occur to modern information carriers due to age deterioration, poor storage conditions, or poor handling practices, and presents various remedies to restore these carriers to a playable condition.