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| ==Background== | ==Background== | ||
| Gracenote began in ] as an ] project involving a CD player program named xmcd. The xmcd player was developed by ], and had the ability to store and recognize CDs from a database included with the application. xmcd users regularly sent additonal CD information to Mr. Kan for inclusion in the database via email. By 1995, the database had become unwieldy and ], a friend of Mr. Kan |
Gracenote began in ] as an ] project involving a CD player program named xmcd. The xmcd player was developed by ], and had the ability to store and recognize CDs from a database included with the application. xmcd users regularly sent additonal CD information to Mr. Kan for inclusion in the database via email. By 1995, the database had become unwieldy and ], a friend of Mr. Kan was recruited to build a server to store the CD information in a network database. The service quickly outgrew Scherf's ability to host and a larger server, hosting facilities, and an advertising business model was provided by a ], Graham Toal. | ||
| CDs do not generally contain any digitally-encoded information about their contents (see ]), Kan developed software which identifies and looks up CDs based on TOC information stored at the beginning of each disc. A ], or Table of Contents, is a list of offsets corresponding to the start of each track on a CD. The matching is fuzzy and tolerates some variation in track offsets. | CDs do not generally contain any digitally-encoded information about their contents (see ]), Kan developed software which identifies and looks up CDs based on TOC information stored at the beginning of each disc. A ], or Table of Contents, is a list of offsets corresponding to the start of each track on a CD. The matching is fuzzy and tolerates some variation in track offsets. | ||
Revision as of 14:15, 13 September 2006
For grace notes in music, see grace note.Gracenote is a commercial enterprise which maintains and licenses a database containing information about the contents of audio CDs. The database is accessible online over the Internet. As of 2005 many computer software applications that are capable of playing CDs use Gracenote's CDDB or similar commercial services such as All Media Guide's AMG LASSO and MusicIP, or open-source projects such as freedb and MusicBrainz. These programs generally offer the option of contributing track listings, and most of the track listings in the Gracenote database are voluntary contributions by individual users of CD-player software.
Background
Gracenote began in 1993 as an open source project involving a CD player program named xmcd. The xmcd player was developed by Ti Kan, and had the ability to store and recognize CDs from a database included with the application. xmcd users regularly sent additonal CD information to Mr. Kan for inclusion in the database via email. By 1995, the database had become unwieldy and Steve Scherf, a friend of Mr. Kan was recruited to build a server to store the CD information in a network database. The service quickly outgrew Scherf's ability to host and a larger server, hosting facilities, and an advertising business model was provided by a Texan, Graham Toal.
CDs do not generally contain any digitally-encoded information about their contents (see CD-Text), Kan developed software 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. The matching is fuzzy and tolerates some variation in track offsets.
Some computer users who have copied vinyl LPs from their turntables onto CD-Rs have been astonished to find their computers correctly displaying the titles and track listings when these CD-Rs are played on their computer. This happens when a commercial CD is a remastered version of an LP, containing the same tracks in the same order. If the track offsets of the homemade CD match the track timings of the commercial CD to within a second, the CDDB database can identify the CD successfully.
Commercialization and controversy
In 1998, was purchased by Escient, a high-tech venture firm and operated as a business unit within the Indiana based company. CDDB was then spun out of Escient in July of 2000 and renamed Gracenote (press release). The maneuver was and remains controversial, because the CDDB database was and is built on the voluntary submission of CD track data by thousands of individual users, who received no compensation for their work. Initially, most of these were users of the xmcd CD player program. The xmcd program itself was an open-source, GPL project, and many listing contributors assumed that the database was free as well. However, at some point the code for xmcd was modified to append copyright notices to all submissions. How visible or open this was to contributors remains a matter of debate. Many contributors of track listings were angered at the transfer of these listings to a profit-making entity which proceeded to make money by charging license fees for access to a database of track listings which individuals had contributed for free.
As of 2005 Gracenote claims that its database contains information on almost 4 million CDs. The reliability both of this statement and of the database itself have been challenged. Because the information going into the database has not been subjected to quality control, duplicate entries are very common. David Jennings, in an article entitled "How many CDs are there in the world?" gives an example of a six-CD set in which "two of the six CDs appear twice in the database, and one appears three times." An article on the Seattle Times website cites Ty Roberts, chief technology officer of Gracenote, as saying that there are approximately 500,000 individual CD titles commercially released and available for sale today in the United States.
Lawsuits
The commercialization of CDDB by Gracenote also caused friction with its former licensees. In 2000, Gracenote sued Roxio for breach of contract when Roxio tried to switch to freedb. The case was settled in 2001.
Gracenote v. Musicmatch
In 2002, Gracenote sued another former licensee, Musicmatch, for breach of contract and patent violations. Musicmatch filed a counter-suit against Gracenote. The Northern District Court in California ruled on August 26, 2004 in favor of Musicmatch. The case was settled in 2004 after Musicmatch received summary judgement on all of Gracenote's patent claims.
A summary judgement found that Musicmatch's CDDB replacement service does not violate Gracenote's patents. The court also found significant evidence that Gracenote may have obtained its patents fraudulently. The court order is available online. A summarized overview of the case is available at the Manatt website within Mr. Robert D. Becker's list of representative cases. Mr. Becker was one of Musicmatch's lawyers during the case.
Gracenote's loss in the Musicmatch case has opened the market for competition, and a growing group of companies continue to enter media identification and metadata marketplace.
Competition
Many of Gracenote's small former licensees moved to non-commercial services such as freedb because of restrictive terms and anger over the privatization of the company. Several large commercial licensees dropped Gracenote's service, such as Microsoft's Windows Media Player and Musicmatch Jukebox, and have moved to the commercial service provided by All Media Guide.
The AMG LASSO media recognition service was launched in late 2004 by All Media Guide. The service allows for the recognition of DVDs and digital audio files such as MP3s, as well as CD recognition, and directly competes with Gracenote in the software and embedded device markets globally.
MusicBrainz is also another music identification service that is open source and created by community contributions.
External links
- All Media Guide (AMG)
- AMG's LASSO
- freedb
- Gracenote
- MusicBrainz
- How many CDs are there? Reliability of Gracenote database questioned
- Gracenote official estimates 500,000 CD titles currently available for sale in the U. S.
- Article about Gracenote's business in Japan