my dvd burner is MSI DR4-A .. i copied several dvd-r & dvd+r ( stored regular date : texts, music files, pics, some short movies ..etc ) using nero but it is only playable on the dvd writer itself and it doesn't work on my pc dvd-rom drive ( mine is matshita dvd-rom ) i also used several brands (princo, starmedia, imation, panasonic) actually wether it's dvd-r, dvd+r, dvd+rw or dvd-rw the result is the same .. maybe it's the way that i burn the dvd..!! well i use the default settings set in nero.. so help is needed here and it'll be really appreciated.