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Super Audio CD (SACD) is a read-only optical disc for audio storage, introduced in 1999. It was developed jointly by Sony and Philips Electronics, and intended to be the successor to their Compact disc format. While the SACD format can offer more channels (e.g. surround sound), and a longer playing time than CD, research published in 2007 found no significant difference in audio quality between SACD and standard CD at ordinary volume levels.〔 Having made little impact in the consumer audio market, by 2007 SACD was deemed to be a failure by the press.〔(The Guardian, Thursday 2 August 2007 ''No taste for high-quality audio'' by Jack Schofield. ) "Such a format—Super Audio CD (SACD)—has been out there since September 1999. And now, it's dying." Retrieved on May 29, 2009.〕 A small market for SACD has remained, serving the audiophile community.〔 (【引用サイトリンク】title=The 10 Best Audiophile SACDs Ever - Many Are Out Of Print ) 〕 == History == The Super Audio CD format was introduced in 1999.〔 Royal Philips and Crest Digital partnered in May 2002 to develop and install the first SACD hybrid disc production line in the USA, with a production capacity of 3 million discs per year. SACD did not achieve the same level of growth that Compact discs enjoyed in the 1980s,〔 Mark Fleischmann ''Are DVD-Audio and SACD DOA?'' April 2, 2004 "the CD tidal wave was so aggressive that it swept away everything in its path including the terms album and record. I keep waiting for a high-resolution audio to trigger a similar tsunami. But tiny islands of SACDs and DVD-Audio titles in my local Tower Records have not grown into mighty continents." () Retrieved on January 16, 2010.〕 and was not accepted by the mainstream market.〔 C|Net News, March 26, 2009 ''Betamax to Blu-ray: Sony format winners, losers'' by Steve Guttenberg. () "SACD was praised by audiophiles, but fizzled in the market. Sony Records no longer releases new SACD titles" (This is not entirely true; while Sony Classical does not appear to be making new SACD releases, Sony Classical in Germany and Japan made SACDs as recently as June 5, 2009 (Sony Classical Germany ) (Sony Music Japan )) Retrieved on May 29, 2009. 〕〔 Stereofile eNewsletter, January 10, 2006. ''Io Saturnalia!'' by Wes Phillips. () Mentions "the failure of SACD and DVD-A to gain traction." Retrieved on May 28, 2009. 〕〔 Audio Video Revolution, October 19, 2006. ''The Symbolism Of Losing Tower Records'' by Jerry Del Colliano. "The pure failure of SACD and DVD-Audio as high resolution formats was analogous burning down a small town." () Retrieved on May 28, 2009. 〕 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「Super Audio CD」の詳細全文を読む スポンサード リンク
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