CD Architect: Red Book Audio vs. Burn Speed?

[mark4man]

About half way through production of a compilation CD, I am wondering...what is the advantage to using CD Architect for mastering my .wav files prior to replication? (meaning on a comparative basis...such as; CD Architect vs. Nero or Roxio.) I am using SoundForge at present; & aside from PQ coding, are there any special audio advantages that would make the music sound better?

Also: I have heard mastering engineers mention the advantage of slow burn speeds for mastering. Right now I am using a TDK, the slowest speed of which is 4x. Can specialty burners that use speeds as low as 2x or 1x be had?

Thanks in advance.

mark4man