4evergr8ful - For those not familiar with doing Video from Command-Line, they can do that with Avidemux.
> The easiest way to do that, is to put the clips to be joined in one directory - in /home or on a Desktop.
> Open Avidemux and if desired "pre-test" the clips by dropping them separately into the window. The Blue "i" button will open a list in which format, frame-size, type of Audio, can be checked. Those must be the same in each clip for joining to work properly.
> Once checked, open Clip-1 in Avidemux, go to File > Append, and browse to Clip-2, and click OK. Continue to add Clip-3, etc, to the new larger video, then Save that under a new name.
> The new Video will play as-is, but can be improved. Open it in Avidemux, and do a 2-Pass conversion to Xvid4 (or MPEG4 if recipients use Windows) - and can use Filters to Sharpen (apply VERY gently) - improve Colour, Denoise, etc. Using 2-Pass (Avidemux analyses and maps the content on the First Pass) - will improve the Audio sync across the previous-clip sections of the new Video.
> This method can be used to create a "preview" of a Video to be made from digital camera clips. Avidemux handles VGA or HD video in the H264/MOV format used by newer cameras, very well.
> Avidemux will convert downloads or camera clips to compliant *.mpeg(2) files, which can be used in DVD-Styler or Kdenlive to create compliant DVDs with Menus, etc, to play in TV-Players.
> Avidemux can convert VOBs back to *.mpeg(2) files, or Xvid4, which can then have sections edited out and saved to re-use in projects for DVD-Styler or Kdenlive.