Copying and pasting files

For several years, I've occasionally backed up my mp3 collection onto CDs and latterly, onto DVDs. What I want to do now is to copy all the mp3s from them onto my computer's hard disk and just have one set.

Now, here's my problem. When I copy and paste the files from the discs to the folder on the computer, I get the old Confirm File Replace dialogue box. I'm wondering is there any way/any program that would make windows ignore the files that have an identical file name/size/date and just ask me if there's something different?

Edit: I'm running Windows XP by the way