what to do with nero cd image????

ok here's the deal i used isobuster and got 2 bin files made one a wave by extracting it. but i followed the instructions and made a cd image using nero burning rom, so do i burn the image on to a cd and when i do that will it work. is that a full game? another question the file is only like 3 meg!!!! shouldn't it be like 300 meg or something??