One of the ’advantages’ of digital is you can make copies of the master without any sonic loss. So the big sonic differences that existed between various vinyl pressings from different countries is mostly a thing of the past. So if the sonic quality of the master is any good, all cd pressings made from that master will probably sound good as well.
The one remaining variable is the manufacturing process of the disc itself. In my experience Japanese cd pressings usually sound a little better, even if they use the same digital master as its source. I suspect this can be attributed to better manufacturing, as Japanese cd’s are much better centered than cd’s manufactured elsewhere. It seems the laser/transport has more difficulty reading discs which are not centered, causing errors that need to be corrected in the digital domain. This manipulation may affect sound quality.
SHM is only about the material of the disc, not about manufacturing or digital processing (like Victor’s K2 or XRCD mastering). The SHM cd’s do feel somewhat heavier than regular discs, but it seems a stretch to attribute any sonic benefits to this.
The one remaining variable is the manufacturing process of the disc itself. In my experience Japanese cd pressings usually sound a little better, even if they use the same digital master as its source. I suspect this can be attributed to better manufacturing, as Japanese cd’s are much better centered than cd’s manufactured elsewhere. It seems the laser/transport has more difficulty reading discs which are not centered, causing errors that need to be corrected in the digital domain. This manipulation may affect sound quality.
SHM is only about the material of the disc, not about manufacturing or digital processing (like Victor’s K2 or XRCD mastering). The SHM cd’s do feel somewhat heavier than regular discs, but it seems a stretch to attribute any sonic benefits to this.