No one has answered your blue laser question yet. I will try, but please read this with a grain of salt. A lot of salt.
Blue lasers will be used to improve DVD's, not necessarily CD or SACD. DVD's right now do not compare well to an HDTV digital TV satelite signal, not enough information. Anyone with an HDTV that watches live HDTV feeds (football)will tell you it's incredible. DVD is a bit behind. People will start to notice the difference, and DVD players will need to be improved. Thus blue lasers.
There may also be a use for blue lasers in vinyl playback. Those tiny grooves contain a lot of information, some of which a stylus can't pick up. In theory a laser can. I can't remember the name of the company that makes a laser record player, DLP?, but they are looking at blue lasers.
Having said that, the only way to get better digital audio, is to have more digits, more information. I believe 'Fourrier Analysis' describe every sound as being comprised of an infinite number of sine and cosine waves?. Therefore the more information obtained, the more realistic the sound. You will likely see 'hard disk' high end audio before you see widespread blue light CD / SACD.
I think.
Please be easy on me. I have no technical information to back up my story.
Blue lasers will be used to improve DVD's, not necessarily CD or SACD. DVD's right now do not compare well to an HDTV digital TV satelite signal, not enough information. Anyone with an HDTV that watches live HDTV feeds (football)will tell you it's incredible. DVD is a bit behind. People will start to notice the difference, and DVD players will need to be improved. Thus blue lasers.
There may also be a use for blue lasers in vinyl playback. Those tiny grooves contain a lot of information, some of which a stylus can't pick up. In theory a laser can. I can't remember the name of the company that makes a laser record player, DLP?, but they are looking at blue lasers.
Having said that, the only way to get better digital audio, is to have more digits, more information. I believe 'Fourrier Analysis' describe every sound as being comprised of an infinite number of sine and cosine waves?. Therefore the more information obtained, the more realistic the sound. You will likely see 'hard disk' high end audio before you see widespread blue light CD / SACD.
I think.
Please be easy on me. I have no technical information to back up my story.