Leawo Free Video Converter is a powerful video converter that can easily convert common and DRM-protected video files between all popular video formats and into popular audio formats with excellent quality, such as avi to videos, videos to avi, videos to flv, mp4 to videos, videos to mp4, videos to mpeg, mpeg to videos, videos to 3gp, videos to iPod/iPhone, PSP, etc. Thus users can freely enjoy video files on PC, YouTube video sharing sites, Portable players like iPhone, iPod, PSP, Zune, 3GP cell phones, etc. KEY FEATURES of Leawo Free Video Converter: 1. Convert videos to avi: mkv to avi, mpeg to avi, wmv to avi, mp4 to avi, 3gp to avi, etc. 2. Convert avi to videos: avi to dvd, avi to mp4, avi to mpg, avi to wmv, avi to dvd, avi to flv, etc. 3. Convert videos to flv: avi to flv, wmv to flv, mpeg, to flv, etc. 4. Support 2D to 3D video conversion.(PRO) 5. Trim video to retain a short duration. (PRO) 6. Crop video to extract the video black margins. (PRO) 7. Set audio and video effects: video brightness and contrast, audio volume. (PRO) 8. Make the original video quality better. (PRO) 9. Support batch video conversion to convert multiple videos at a time. 10. Merge two or three or more video files into one video file at random. 11. Upload output video to YouTube directly. 12. Capture beautiful thumbnails to enrich the picture database. 13. User-friendly video conversion interface. 14. Fast conversion speed and excellent output quality. 15. No machine performance requirement for video conversion.