If you have a v4 then buying a dvd burner that supports +r and -r won't do you much good. v1-v4 don't play dvd+r/rw worth a crap. Not sure about CloneDvd.
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Not necessary True! B/c believe it or not there are several Ver.4's
out there that DOES infact run DVD+R's..Strange as it might sound but it does..Although overall likely typical Ver.4 WILL NOT run +R's..Getting the Sony DRU500A is not a BAD investement at all..You get the -R and +R support where A05 is only -R support.
It seems like I'm bashing A05 but I'm not..I own A05 myself but I plan to get Sony -R+R Drive in the future very soon..Matter of within month or so..For mere $50.00 to $60.00 I think it's worth it.