Ignoring the cost differences between the two types of media: Is the life of the +R DVD longer or shorter than the +RW? What about -R or -RW? and finally "Dash" versus "plus"? Any thoughts regarding compatibility with stand alone DVD players? My Experience Sony DVD player = is very picky and prefers RW Toshiba DVD player = R or RW Apex player = will read anything +/- R or RW ....and yes quality of media is important.