whats better? a cd-r with a green bottem(acer, and cheap kind), or a cd-r with a blue bottem?(need a

if the green ones r better then thank goodness.(I have like 70 of those). If its the blue one then oh darn. And what brands r the blue ones in. If both r the same then Yahoo!

a.)green
b.)blue
c.)same
d.) WTF!