file reallication error in winoncd 6

[abbu]

I tried to compile a DVD with some avi , mpeg movies.
I first let WinoCD create a image and let it burn.

During the burn process Winoncd gave me the bufferunderun error.
==
Invalid field in CDB. Possibly buffer-underrun.
GRI_WriteBlocks
==

What is causing the bufferunderun and how can I prvent this from happening ??
I believed the writing of the image would prevent such.