Help with buffer underrun

[rummy34]

Hi i have a sony CRX-160E CD-R/RW Burner I am using click`n`burn pro recording software with it. I have had success with it up until now i have tried to copy a reader rabbit game for my daughter and i do a test and it keeps coming up buffer underrun how can i fix this please. I am a novice and have only had the burner for a few days. I am in Australia so i would appreciate any help and hints for copying.