1) Yes.
2) Its just a format. DVD-R is supposed to be more compatible. Do yourself a favor, buy a dual format drive.
3) Not quite. DVD burners burn to a 4.9 gigabyte disk, a normal DVD is twice that size. Thus, to burn a DVD, you must compress the video and/or audio to make it fit onto your DVD-R, meaning you lose some of the quality. Eventually, dual layer burners will be available that will allow you to make 1:1 copies, but there are none right now.
4) I dont think its that much harder, but I havent ever tried, so... It does require different software to copy a DVD though.
5) Sorry, Ill leave this to someone else, as I dont really know enough about individual models.
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"Good people do not need laws to tell them to act responsibly, while bad people will find a way around the laws."
--Plato
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