burning dvds from external hard drive

Hey I'm new, so if these question have been answered already, please direct me to where I can find the answers.

I have copied purchased commercial dvds to my external hard drive. It is getting full. Some of those dvds I have loaned out and will probably never see again. I would like to burn copies of those films to dvd using my macbook dvd burner.

1.) Can I burn a dvd from my hard drive using the dvd burner on my Macbook and have it be the same quality as the original dvd?

2.) And, which blank dvds should I use, -R, -R DL, -RW, +R, +R DL, +RW?

3.) And will I be able to watch those copied dvds on any dvd player?