Mpeg Not Working

[venney]

Ok heres my problem!
i have 2 mpeg files on my pc. i want to join the 2 mpeg files togher. So i downloaded some programs to do it, "Video Slice" and "AVI MPEG RM WMV Joiner" but nether worked, i have no idea they both just said no video or something. so i thought, well i no these join .avi files so il convert my mpeg files 2 avi's. but i cant convert them. ive tryed lots of programs but they all just say an error and turn off. n e 1 know y? or cans ome one suggest a amazing program to join or convert my mpeg files.
please help me. thank you.
Lawrence

[Axelation]

Try this one. http://www.media4pc.com/mpeg-join/

[venney]

Ive tryed that one, "Unable to read the file format".
pretty much every one ive found wont read these files. n e 1 else have an idea? the movies work fine in windows media player and other movie players.