MKV2MP4 is an application designed to convert video files in the MKV format to the more widely-utilized MP4 format. However, unlike many other tools of this type, it does not re-encode the video data, meaning there is no loss of quality. The application supports full HD videos and creates Apple TV-compatible MP4s by default, while various options allow for successful conversion of most audio and subtitle tracks. The biggest limitations are the inability to convert other video formats and an inability to downscale HD video files, turning them into smaller SD files.