Hi Foobar experts

I have the following problem:
Playing an audio cd from the cdrom drive causes big clicks in the sound aprox. every second.
Setup: Foobar2000 v0.8.3 using concolver crossover and ASIO dll.
Since the player works perfectly playing from the HD, I asume that the problem is the datastream comming from the cdrom drive.
I have tryed altering every relevant setting including the full file buffering, but the problem stays the same.

Question: Why does typing a large (any) number (fx. 100000 kB) in the "full file buffering" window not cause the player to load a complete song from the audio CD into a buffer file.

How can I make Foobar use ram as a buffer or in any other way make the datastream from the CDdrive behave like the stream comming from the HD?

Thanks in advance