the sims mega deluxe instalation help!

ive been trying to run it on my PC its a windows XP had it for 3 years and the sims 2 works on it. but now when i get to 95%on the 2nd disk i says. ''the correct volume is not in file.please put (the file name sorry i fergot) in F:. it is in F: thats my cdrom drive and i dont know what to do!HELP!