Computer wont read sims 2

my computer wont read the sims2 disc i can put it in the cd drive and wnothing comes up i go in to my computer and it jus says insert a disc into c drive. it reads all the other discs ive tried just not this one i tried it on someone elses computer and it works on theirs so how come it doesnt work on mine?:confused:

Iโ€™m not sure on this, but if the sims 2 disc is a DVD, and you donโ€™t have a DVD reader or writer in your computer, it wont work, is the disc dirty?

Is it an original Sims 2 disc?