CopyCD is a simple disc copying tool, which - despite its name - can handle CDs, DVDs and Blu-rays (although not commercial movie discs).
The program has a very basic interface. You're able to choose your "master" drive (the source), and your "copy" (the destination); an "OK" button launches the copy process, while an "Exit" button closes CopyCD down. It really couldn't be any simpler.
And yet, there are one or two useful extras here. The program isn't just about copying physical discs, for example; it can also create or burn ISO images. And there's support for copying folders, too, which means you're able to copy the contents of any folder tree into an ISO file of any size.
The program also has a convenient multi-copy feature. If you've made one copy of the source disc and need another, just eject the first, insert a blank disc and CopyCD handles everything else.
There's a built-in verification check to make sure that your copy has worked. By default this is set to "Quick", and is probably good enough, but you can alternatively set it to "Full" for extreme thoroughness, or "None" if you just want the fastest possible copy time.
Simple Explorer integration means you can launch the program by right-clicking a drive in Explorer and clicking CopyCD.
And all this is packaged in a tiny program (240KB including the uninstaller), with no adware, and no dependencies on .NET or anything else.
Version 1.2 adds multisession support.