Joining videos could damage the quality of the processed films, especially if the input files have different formats. All Video Joiner will help you with a solution for this issue by ensuring you'll get the high-quality output files you need.
The best thing about this application is that you don't have to be a genius in handling video files as the interface is easy to manage having just a few buttons. Plus, the program supports a wide range of video formats, for both the input and the output, and gives you access to many output file configurations.
It would've been great if there were more video editing tools available, as the only modification you can apply to your films would be to extract the frames that matter to you. You won't be able to adjust the audio settings, rotate image, change aspect ratio or add watermarks.
The results won't disappoint you, though. The application will offer you a small preview to the output file while joining the files to get an idea on how the final product will look like.
This tool will not be useful for people in need of video editing functions. But, to me, this aspect is irrelevant. All Video Joiner is efficient and has a reasonable cost so it's worth trying out.