High Density CD

The technical specifications of a High Density CD (HDCD), proposed by the Optical Disc Corporation (ODC), were submitted to the International Electrotechnical Commission (IEC) as a draft standard. It described the use of a new higher definition red laser to achieve a capacity of up to 3.3 gigabytes of user data in a CD. It apparently also claimed that, using MPEG compression, it could output at a data transfer rate of 3.3 Mbits/sec, making the HDCD able to store a 135-minute full-length movie. The race towards DVD seems to have sidelined the HDCD effort

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