MKVtools is a powerful application designed to manage and convert MKV and OGM video files. It aims to convert MKV files into more user-friendly formats that can be played on a variety of hardware. With MKVtools, you can easily convert videos to AVI or MP4 files. Moreover, it allows you to extract selected tracks from MKV files as separate video, audio and subtitle files. One handy feature is the ability to preview videos before converting them. MKVtools also offers the ability to embed subtitles into videos with control over font, size and placement. Moreover, it provides impressive control over splitting, merging and changing the aspect ratio of video files. All these tasks can be processed in batches. However, the MKVtools interface can be complex and it will take some time to fully understand its functionality. Overall, MKVtools is a powerful application for managing and converting MKV and OGM files.