Does Windows 7 have a function to copy CDs?
I know I can rip data CDs by just copying their contents to a folder, and audio CDs using the Media Player.
I know I can write data CDs directly through Windows Explorer, and audio CDs through the media player.
Is there any built-in way to copy a CD in Windows 7? If so, how?
No, Windows 7 cannot, on its own, copy a disc.
Check out this post for a bunch of suggestions. I've had good luck personally with ImgBurn which is free and powerful.