Those Psx cdroms are black so Sony could tell people 'if it's not shiny-black, it's fake'. One of the proprietary copy protections, which did right next to nothing. The IR reflection spectrum isn't affected to any real extent.
Now, as to what dye it uses or whether you can burn it in a normal writer, I know not.
<font color=blue>I hacked Msft, and all I got was this lousy source code.....</font color=blue>