The backup is more light that the real one and it is only one folder!
Where do you get this from
Please read the post before dropping in totally out of the wild replies.
Using a simple 'copy and paste' as the OP mentions there is no file compression so the size would be the same.
There wouldn't just be 1 folder if you copy a folder it should copy its contents and sub-folders and their contents. This however, may run into difficulties if a special folder is to be included (the xp backup as Logos mentioned should get round that, then again that wouldn't be classed a simple copy and paste as the user mentioned