The pages look sooo glossy.
These SHM-CD is a little complicated to explain but to put it simply, they sound better than regular CDs.
The improvement in sound quality mostly comes from the material they use to create the disc. Because of this the data(music) is able to be more precisely put onto the disc. It also helps the laser inside the CD player read the disc more accurately. Something about the material reduces laser splatter, meaning the disc is not deflecting the laser. This would result in the player getting more of the data on the disc, improving the sound quality coming from the system.
I'm not an expert but that is how I understand it. I have yet to get my hands on one of these.