Samsung SGH-D807 / D806

hi out there i use nokia pc suite to convert avis to 3gp and samsung pc studio suite to transfer to phone i get an error saying invalid format 3gp was wondering if other converts would be better i had a razr and had videos on pc from that phone tranfered to d807 played fine im assuming this phone supports 3gp
my goal is to watch music videos or movies rom pc most of these r mpegs or avis sorry if im rambling is someone could help it would be greatly appreciated thanks 🙂