Dual layer to dual layer

Hopefully someone can answer this…I want to get a dual layer burner cause I know I lose quality burning from dl to single layer. Could someone tell me the best dual layer burner to get and also the best media for it. And can I just use dvd decrypter to burn a dual layer dvd to a blank dual layer and retain all the quality? I dont know much about dual layer and have just been using xcopy express to burn all my dvds thus far. Thanks for the help.

Best one is subjective. I like my NEC3500 others like different ones.
Yes you can rip and burn with DVD Decrypter with no loss of quality.
Best media. The only media I can get a present is the Traxdata stuff. Seems good enough for me at the moment. You can proabably fine more out in the media forum though.