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Topic: Sony Super Audio Cd (Read 3162 times) previous topic - next topic
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Sony Super Audio Cd

I read about Super Audio CD's feautures and it says it can hold 6 times the data of an ordinary Audio CD. But I didn't understand if this is due to the SACD material (higher capacity) or to audio compression (like mini disk).
If it's the first, then SACD can't be ripped...?

Sony Super Audio Cd

Reply #1 –
SACD uses a DVD as a base disc to achieve a capacity of 4.7GB.  SACD also can use compression, though it is of the lossless variety, unlike the ATRAC algorithm used in MIniDisc. Music is encoded as 1-bit, 2.83Mhz DSD (direct-stream digital), not PCM. Since the format is proprietary and heavily guarded by Sony, as with ATRAC, it is not available for use in a PC setting; thus, even if one could rip an SACD (which to my knowledge is not physically possible due to some other intricacy which I cannot comment about), the resulting data would be unusable (not to mention that it is encrypted on top of this all).
 

Sony Super Audio Cd

Reply #2 –
Well, I found some site that gave a glimpse about how DSD works. Won't there prolly be similar formats soon, as alternative to PCM?