Apowersoft Video Converter Studio is a powerful video editing suite that can convert numerous types of video formats, such as AVI, MP4, FLV, and MKV. The application is also capable of converting audio formats, such as MP3, MP2, OGG, and AAC. 

Key features include: 
Numerous video and audio formats supported. 
Built in media player. 
Import and edit external subtitles. 
Apowersoft Video Converter Studio is simple to use and has an intuitive interface. That being said, the import process is not supported by drag and drop; you must import using file browser, but you can import multiple items in batch mode.The editing capabilities are fairly extensive; you can customize the frame size, codec, frame rate, bit rate, channel mode and sample rate. Once you have the basic framework in place you can view the clips in a preview window, this also you make further editing tweaks such as adding subtitles and making contrast and saturation adjustments.Overall, Apowersoft Video Converter Studio has a simple look, an intuitive interface giving you the ability to basically edit your videos with audio and subtitles