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Gracenote, formerly CDDB (Compact Disc Data Base), is a company that maintains and licenses an Internet-accessible database containing information about the contents of audio compact discs and vinyl records. It provides software and metadata to businesses that enable their customers to manage and search digital media. Gracenote provides its media management technology and global media database of digital entertainment information to the mobile, automobile, portable, home, and PC markets. Several computer software applications that are capable of playing CDs, for example Media Go and iTunes, use Gracenote's CDDB technology. Winamp, once a major licensee, no longer has access to Gracenote; the legacy media player program lost access to Gracenote when SHOUTcast and Winamp were sold by AOL in 2014. Redevelopment of Winamp continues by its new owner Radionomy who have said that future Winamp versions will have access to an online music database.〔Winamp Official Forum〕 == History == Gracenote began in 1993 as an open-source project involving a CD player program named xmcd and an associated database named CDDB. xmcd and CDDB were created by Ti Kan and Steve Scherf. Because CDs do not contain any digitally-encoded information about their contents, Kan and Scherf devised a technology which identifies and looks up CDs based on TOC information stored at the beginning of each disc. A TOC, or Table of Contents, is a list of offsets corresponding to the start of each track on a CD. Its original database was created from and continues to receive voluntary contributions from users. This led to a licensing controversy when Gracenote became commercialized. On April 22, 2008, Sony announced that it would acquire Gracenote for US$260 million.〔(Gracenote News: Sony Corporation of America to Acquire Gracenote )〕 The acquisition was completed on June 2, 2008.〔(Sony Corporation of America Completes Gracenote Acquisition )〕 On September 9, 2010 Gracenote received its one billionth piece of data , with a submission about the Compact Disc release of Swans' ''My Father Will Guide Me Up a Rope to the Sky''. On December 23, 2013, Sony announced it would sell Gracenote to Tribune Media for $170 million. The acquisition closed in February 2014: Gracenote was aligned with the Tribune Media Services division.〔(【引用サイトリンク】url=http://variety.com/2014/digital/news/tribune-closes-170-mil-deal-to-acquire-sonys-gracenote-1201084243/ )〕 On June 12, 2014, Tribune Media Services merged with Gracenote to form one company under the Gracenote name. 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「Gracenote」の詳細全文を読む スポンサード リンク
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