The software supports converting from a wide range of common video files to the one supported by the Samsung Smart TV. According to various specifications for TVs, the Samsung Smart TV supports MP4 and AVI, but MP4 is recommended for flawless playback. Yes, the software supports converting from AVI to MP4. Download and install it, then load the files from USB, change the target to Common file > H.264 (MP4) and that's it.