MPEG stands for Moving Picture Experts Group. This group specializes in the development of video and audio encoding standards. When you have come into possession of a file with an MPG or MPEG extension, you usually have either MPEG-1 or MPEG-2 video. MPEG-1 video is used on VideoCD (VCD) discs and MPEG-2 video is used on Super VideoCD (SVCD) and DVD discs. You can't directly play flash files on VCD or DVD, but you can convert swf to VCD or DVD player compatible MPEG-1 or MPEG-2 format with iLike SWF to MPEG Converter software.