Super-audio compact disc (SACD) hybrid discs are the most common examples of SACDs, as the discs provide two layers of content, one layer titled the "CD layer," which is compatible with legacy CD players, and a 4.7 GB layer for SACD players.
Function of SACDs
SACDs provide a a larger storage medium for audio discs, which allows for higher-quality playback when compared to MP3 files or traditional CDs. Stereo recordings from SACDs stream at 5.4 mbps, while traditional CDs stream at 1.4 mbps. The increased bandwidth provides listeners with an arguably improved sound quality with greater clarity and warmth, closely resembling the studio master version.
Popularity
SACDs have found persistent popularity in niche listening markets that cater to audiophiles interested in the highest-quality sound. Although most popular releases today are being released through digital distribution sites such as iTunes, many classical and jazz musicians are represented by the medium because of the higher-quality playback.
History
SACDs were introduced by Sony and Philips Electronics in 1999 to provide consumers with a high-resolution and high-quality alternative to traditional CD players. Initially, prices for the technology were extremely high, with SACD players ranging from $5,000 to $10,000. Most DVD players manufactured today are capable of playing SACD files, but many proprietary SACD players can still cost several thousand dollars. Although the format promised to revolutionize the quality of music, at the time, many people were much more willing to pay (or not pay) for music through Internet downloads.
Competitors
In addition to SACDs, a number of other high-resolution audio formats have been released, including DVD audio (DVD-A) and Blu-ray Audio (BD-audio). DVD audio discs were released two years prior to SACDs but failed to secure any significant market impact. BD-audio has yet to receive any support from the music industry.
Criticisms of the Format
Although many consumers tout the format's superior audio quality when compared to traditional CDs and MP3 downloads, in a study performed by the Journal of the Audio Engineering Society (published September 2007), listeners were unable to find any discernible difference between normal CDs and SACDs when listening.
Tags: SACD players, audio discs, higher-quality playback, stream mbps, when compared
