I have a dell dim. 3000, phillips 16x+/- burner, and sony dvd player. i have used nothing but dvd+r verbatim 16x datalifeplus, and 1 office depot 4x dvd+r, all successful burns that play in the sony. Problem is, they don't play in the dell. I use the burning software that came with the pc, sonic. Any help or advice would be greatly appreciated.