From Web Solution Mart:
Joins multiple videos of same or different format and save it as single video. Supports AVI, WMV, MOV , DIVX, ASF, 3GP, MP4, MPEG1, MPEG2, VCD-PAL ,VCD-NTSC, SVCD-PAL, SVCD-NTSC, DVD-PAL, DVD-NTSC and other formats.
What's new in this version:
Version 7.0 may include unspecified updates, enhancements, or bug fixes.
fails immediately, so you don't have to wait to for failure
trying to join two avi files, same file, different names, freezes immediately
don't know who it does work for, not me
Updated on Jan 27, 2013
tried to join same two avi video files, but join them to mov, it seemed to be working, the first join to avi froze making only a 125K file that of course wouldn't play. (clips are 381Mb). The attempt to mov ran to a full bar (indicating completion) and made a 1.6Gb file), but then froze and had to be terminated, the file wouldn't play.