Kprobe speed not working?

I just built up a new computer and installed KProbe with my Liteon LTD163D reader (my writer is a NEC 3500). The reader always appears to read at Max speed instead of the speed selected. Is there a way to avoid this?

No there isn’t. The drive does not support read speed setting.

No, the 163 is locked at max speed and does not respond to speed commands.
You can try one of the utilities that limit read speeds, like CDBremuse (sp) or Nero DriveSpeed, sometimes they work.