Nero Free can be used for burning data on a disc (DVD/CD) or to copy one disc to another or to hard drive. The program lets you to choose burning speed between safe, minimum, maximum or select automatic. It can verify the disc after the burning is complete to verify its integrity before using it.
Regarding copy disc module, it allows to verify data on disc after burning and simulate before burning.
Once you add folders or files, on the interface you will see the list with all files and their size. A progress bar will let you to see how much space is available, to add more files.
This is a free and legal version (ad-supported) with disc burning and disc copy.