How Fast Can an Insect Travel on a CD Without Slipping Off?

[Inferior Mind]

A .5g insect rests on a compact disc at a distance of 4cm from the centre. If the coeffiecient of static friction is .51 what is the maximum velocity the insect can experience without slipping off?

I am lost, can someone help ?

 

[Simon Bridge]

Draw a free-body diagram for the bug.
This is circular motion at constant speed... what is the condition for that?
What are the equations?