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Direct-to-disc recording refers to sound recording methods that bypass the use of magnetic tape recording and record audio directly onto analog disc masters. ==Professional analog sound recording== Most sound recordings for records before the 1950s were made by cutting directly to a master disc. Recording via magnetic tape became the industry standard around the time of the creation of the LP format in 1948, and these two technological advances are often seen as being joined, although 78 rpm records cut from tape masters continued to be manufactured for another decade. In the late 1970s, a small number of albums recorded direct-to-disc began to appear again on the market and were marketed as "audiophile" editions, promising superior sound quality compared with recordings made using the more common multi-track tape recording methods. To make a direct-to-disc recording, musicians would typically play one 15-minute "live" set in a recording studio per LP side using professional audio equipment. The recording was made without multitrack recording and without overdubs. The performance was carefully engineered and mixed live in stereophonic sound. During the performance, the analog disc cutting head engages the master lacquer used for pressing LP records and is not stopped until the entire side is complete. Such a direct-to-disc recording was often simultaneously recorded onto a two-track master tape for subsequent pressing in the traditional manner. Although such tapes were often made to preserve the recordings in case the direct-to-disc process failed or the master disc became damaged before the final product could be produced, direct-to-disc albums were almost never re-issued as standard albums made from tape masters. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Direct-to-disc recording」の詳細全文を読む スポンサード リンク
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