Pioneer DVR-110, it burns ALL types of media even DVD-RAM.
PC User says its the rolls royce of DVD drives.
My dad has a 110. I have a 110D and theyre exaclty the same but with no RAM burning support ($10 less too).
I do suggest updating the firmware when you get it though because this unlocks the ability to burn 16x on minus media.
Oh and on the topic of burning original DVD's, it dosent matter what drive you use, you just need the right software.
DVD-Shrink is perfect, and ya dont necessarily have to shrink the DVD either.
And also, whatever you do, DONT get liteon, they are **** house.