Quiet to very loud very suddenly is called dynamic range and a lack of compression. This can be inconvenient but it is indicative of a high quality mastering job. I'm not sure about the hiss you are hearing and I have no idea what version you bought, you said 360 surround, is this a multi-channel disc? Are you trying to listen to it on two channel gear? There seems to be more to this than a faulty disc.
New miles davis cd.... wow
Just wondering what is wrong with my miles davis kinda blue cd. I just bought it tonight and was looking forward to some good listening. It sounds like a broken record or maybe one that is warped. Did i get a bad cd or is this thing just recorded that badly. I had to put in a Dave Grusin cd just to make sure my equipment was ok. It really sounds terrible. Lots of hissing in the background. I cant stand it. lmk asap Kevin