Do you have to have a blank Blu Ray disc in order to burn a Blu Ray movie?

And can you burn a Blu Ray with a regular dvd burner or do you need a Blu Ray burner? Any helpful sites I could learn about burning Blu Ray discs?Do you have to have a blank Blu Ray disc in order to burn a Blu Ray movie?
You can burn a BLU RAY to a regular DVD if you have a Blu ray player, a digital stabilizer ( Sima T-200) that eliminates the anticopy feature, and a DVD recorder.... Cuurently there is no LEGAL software out there that would allow you to copy from your computer and then copy to a disc. Most software that allows you to download the digital copies of movies to your computer or back up your DVDs to a harddrive, the anticopy mechnaism is also downloaded and even though you can see a clear picture your computer, if you try to copy it back to as blank DVD, your dvd burner will either produce a disk that is unwatchable or the copy process will be not be allowed to engage.Do you have to have a blank Blu Ray disc in order to burn a Blu Ray movie?
I dont know about sites, but you have to have blank disks, they havent come far enough yet that you can add on.