Optical disc composed of a phase change material, most often AgInSbTe, an alloy of silver, indium, antimony, and tellurium. Optical discs are most commonly used for storing music (e.g. for use in a CD player), video (e.g. for use in a Blu-ray player), or data and programs for personal computers (PC). The Optical Storage Technology Association (OSTA) promotes standardized optical storage formats. Although optical discs are more durable than earlier audio-visual and data storage formats, they are susceptible to environmental and daily-use damage. Libraries and archives enact optical media preservation procedures to ensure continued usability in the computer's optical disc drive or
Close (to the Edit) song "Beer Barrel Polka", as performed by The Andrews Sisters. The short spoken-word vocal and the "Hey!" sample - used in a number of songs most notably in "Firestarter" by The Prodigy and "Back in the Day" by Christina Aguilera (uncredited) - was the voice of Camilla Pilkington-Smyth. The single was released in the UK on what had become ZTT's customary array of formats: standard and picture disc 7" versios, five 12" singles (one a picture disc) and a cassette single, each featuring a number of unique mixes. The many remixes were given their own titles derived from the overall