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Dolby Laboratories was founded by Ray Dolby in 1965. Dolby's first development under the aegis of his new company was called Dolby A-type® noise reduction. It was a sophisticated new form of audio compression and expansion that dramatically reduced the background hiss inherent in professional tape recording without discernible side effects on the material being recorded. Its freedom from side effects, more than any other feature, is what differentiated Dolby noise reduction from previous attempts at audio noise reduction, and ultimately earned it a place in virtually every recording and film sound facility in the world. In addition to analog noise reduction and home theater surround sound technology, licensed technologies today include many digital technologies, such as Dolby Digital, the multichannel digital surround sound format adopted for use with DVD, digital broadcast TV, digital cable, and direct satellite. The company remains unique in its ability not only to develop superior technology, but also to foster its adoption worldwide by means of its professional equipment manufacturing facilities, its licensing program, and its film sound program.