thanks for giving me the help. i read about codecs. that maybe the answer but i did not give all the details of my problem. the rca lyra x3030 is a multimedia player, i recorded videos useing a micro camera connected to it. recording my own "cheaters" show starring my @#$%*** wife. i can play some of the files but not all on the rca. i can download the viewable files to my pc but the one with "file not supported" are not even seen by the pc. how can i download those files or how do i use the codecs on the rca player.