 The HD layer of an SACD disc cannot be played back on computer CD/DVD drives, and SACDs can only be manufactured at the disc replication facilities in Shizuoka and Salzburg.However, a PlayStation 3 with an SACD drive and appropriate firmware can use specialized software to extract a DSD copy of the HD stream.Sound quality parameters achievable by the Red Book CD-DA and SACD formats compared with the limits of human hearing are as follows