Open Video Joiner is a simple-to-use program which allows you to merge media files of various formats, including 3GP, AVI, ASF, MP3 and RMVB.

The interface of the application is plain and simple to navigate through. Videos can be imported into the list by using either the file browser or "drag and drop" method. Batch processing is supported.

In the queue you can check out the name, duration, transition type and transition duration for each file. But you can also preview clips in a built-in media player.

In the "Options" area you can specify the output format (AVI, WMV, ASF or MKV) and destination, in order to proceed with the merging process.

In addition, you can configure audio and video parameters when it comes to the resolution, frame rate, resize mode and compressor (e.g. adjust smoothness, set data rate). Settings can be restored to their default values at any time.

The program takes up a pretty high amount of system resources when it is busy with a task, quickly merges files and manages to keep a very good image and sound quality. There is no help file available. We haven't come across any issues during our tests. Aside from the outdated interface and the demo limitations, we strongly recommend Open Video Joiner to all users.