Adobe CS4 Master Collection Wont Install

Hey guys
Adobe cs4 master collection wont install i choose what i want put in serial and it says insert disc into drive when it is in the drive i copy all files to pc and it still asks the same thing whats going on ??? am i missing a file or something???
Thanks
Answer #1
You likely haven’t cracked the .exe or replaced the original .exe with the cracked .exe.
Answer #2
ive never had to do that before i downloaded the one uploaded by nawtyboy ages ago now i goto use it it is doing this to me
Answer #3
anyideas??