Why cant i copy and paste files from cd

[m.c1evs]

Can anybody help me

I am unable to copy and paste files from my cd drive or dvd drive to my hdd..

i have an asus m/b with an amd2000 using windows ME

when i try to copy certain files normally large files it comes up with 'unable to retrieve data'

any help would be great!

C1evs.....