which files and/or folders to copy when backing up database

[bryant]

Originally Posted by gduns

You can use the same external hard drive on 2 different laptops that have hoster on them. The only thing you have to do is rebuild songs database on the machine you didnt originally load the songs on. this will read every karaoke file on that drive and update the database so it will be the same as the other machine.

GDGUNS: And if I don not choose to use the same HD for both, but one that is installed internally in the backup computer. Which files or folders do I need to copy from the original HD and transfer to the backup internal HD to make the backup computer identical to the original?