What is an SACD disc?
SACD is a high-resolution audio disc format that was developed by Sony and Philips Electronics. SACD is designed to provide high-resolution audio in both stereo and surround sound modes up to 5.1 channels. Not all discs will contain both stereo and surround tracks as this is dependent on the disc itself. The SACD format uses a process known as Direct Stream Digital (DSD) to encode audio. DSD has a sampling rate of 2822.4kHz and the resolution is 1 bit. SACD recordings can have a wider frequency and dynamic range than conventional CDs. SACD discs can be one of three types: • Hybrid – This type of SACD contains an SACD layer compatible with SACD players, as well as a CD layer which is compatible with most standard Red Book CD players. • Single-layer – This type of SACD contains only one SACD layer compatible with SACD players, and does not contain a CD layer. This type of SACD will not play in a standard CD player. • Dual-layer – This type of SACD contains two SACD layers for additional
