Optical disc drive beam on a smaller spot size and to read smaller pits. DVD lens supports a different focus for CD or DVD media with same laser. With the newer Blu-ray disc drives, the laser only has to penetrate 0.1 mm of material. Thus the optical assembly would normally have to have an even greater focus range. In practice, the Blu-ray optical system is separate from the DVD/CD system. During the times of CD writer drives, they are often marked with three different speed ratings. In these cases, the first speed is for write-once (R) operations, the second speed for re-write (RW)
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