If you got the CD software with the camrea it will not come with a CD Key..
the reason why it will be asking for on is.....
With most computers come with per-installed software ( trial virison) If you don't uninstall this trial software and delete it off the registory. Every time you install new software from the same company it will ask for a CD Key. most computers will have a pre-installed program called POWER DVD this a cyberlink program and need to be uninstalled and deleted off the registory, once this is done uninstall all cyberlink software.
restart your computer and then re-install and it should be fine.