G473.mp4

: Highly recommended for both Windows and Mac users for its speed and ease of use when merging MP4 files.

If "g473.mp4" is one of several clips you need to join into a single feature, several free tools allow you to do this without losing quality: g473.mp4

: Excellent free options for stitching videos together. Avidemux is particularly useful if your files share the same encoding settings, as it can "append" them without re-encoding. : Highly recommended for both Windows and Mac