Have you downloaded multiple Youtube videos that should be combined into single video file? Alternatively, are you looking for an easy way to join multiple FLV Flash videos files? In either case, small utility “Andys FLV Joiner should do the trick. It is a portable utility to join multiple video files on the fly.
Features of Andys FLV Joiner utility
1. Simple & effective multiple flash video files joiner.
2. It supports VBR files without any audio sync issue.
3. There is no quality lossor recoding of video files.
4. It supports FLV video format (FLV1, VP6F, H264).
Related - CombiMovie combines two or more mpg/mpeg files
To get started, download Andys FLV Joiner [30KB], unzip it and double click to launch the utility. Click Add button to load multiple FLV files in the utility. Click Join button to combine selected FLV video files. If you are joining video files with different and FPS, output file will have properties of first video file.