If you have obtained a .divx file, then you have a DivX file.Generally DivX files have the extension .avi but there are still a lot of .divx files floating around the net. DivX is an MPEG-4 format, therefore usually producing high quality video files at lower birates, especially from a DVD source. You need to install the DivX codec to play back these files properly. Media Player Classic is an excellent player for DivX files.

Download DivX Play from: http://www.afterdawn.com/software/video_software/codecs_and_filters/divx_play.cfm

Download DivX Pro (Win98, WinME) from: http://www.afterdawn.com/software/video_software/video_tools/divx_pro_codec_win98me.cfm

Download Media Player Classic from: http://www.afterdawn.com/software/video_software/video_players/media_player_classic.cfm