How to make a ball not bounce at all

Hey guys,

Is it possible to make a ball not bounce at all?
i’ve tried to put the Damp and the mass at it’s highest but the ball still jumps sometimes when it gains some velocity on the plane.
For the game i’m (trying) to make it’s crucial to have the ball not bouncing…

thanks for the help!

(the blend file is here http://rapidshare.com/files/191710665/2412009.blend.html )