i'm sorry if this question seems warez related but it is really not,
it is a technical question.

there is a disk called 5 in 1 that contains all of the 5 office system 2003 in one cd.

my question is how come a 700mb cd contains more than 1GB of data ???

i burned the iso and open the cd , selected all files ,right clicked and selected properties ang got more than 1 gb of files..

how can that be ????