Following the SHM-CD
by JVC/Universal and HQCD
by Toshiba EMI, Sony has joined the competition for the next-generation, higher-quality CD formulation with its Blu-spec CD
. Sony applies new technologies and materials developed for Blu-ray Discs to improve the sound of the Red Book CD.
More specifically, it uses the Blue Laser Diode Cutting technology, which utilizes optimized optical fibers and blue laser to improve the quality of laser beam used to cut the CD master. The new technology allows for a more precise cutting at the micro-level. The second factor is the new high-polymer polycarbonate material which enables a very precise transfer of bits from the stamper to the CD.
The cumulative effects of these innovations are reductions in reading errors and jitter, which translates to human ears as more open, vivid, and realistic sound that is closer to the quality of master tapes. And, as with SHM-CD and HQCD, Blu-spec CD is 100% compatible with normal CD players.
Sony Music Japan is now re-releasing its best recordings on Blu-spec CD. The best place to start would be a specially-packaged 2-disc samplers, available in two editions: Jazz Sampler
and Classical Sampler