4Videosoft Video Converter is a professional Total Video Converter, which can not only convert between any video formats including MPG, MPEG, MPEG2, MP4, FLV, MOD, M4V, AVI, WMV, MOV, DivX, XviD, etc., along with HD videos, like HD TS, HD MPG, HD MPEG, etc, but also extract audio from video and convert between all audio formats including MP3, AAC, AC3, WAV, WMA, M4A, OGG, AIFF, FLAC, etc. Besides, 4Videosoft Video Converter is in possession of various strong editing functions like Effecting, Trimming, Cropping, Merging, Watermarking and Taking Snapshot. Also, it has user-friendly interface and high conversion speed. Now it becomes 6X faster with NVIDIA? CUDA? and AMD APP technology. Key functions: 1. Conversion Functions 4Videosoft Video Converter supports all kinds of video and audio formats. So it can convert the video you select into any other formats for you to play on your portable devices. It can also convert video to audio for your listening. Also, it can be used to convert video for iPad, iPad 2, the new iPad, iPhone 4, iPhone 4S, iPod, Apple TV, iRiver, PSP and other portable devices. 2. Editing Functions With this 4Videosoft Video Converter, you can merge your selected video sources into one file to enjoy. You can use it to preview the original video and output video effect at the same time with Video Converter, and adjust the video effect by modifying the video Contrast, Brightness, Saturation, Hue and Volume. The function of trim can help you to cut off any time-length video clips from video source file. With it, you can remove the black regions and adjust the aspect ratio to change the video play screen fitting your player. 3. Setting Functions You can select the audio track and subtitle uou need for output video. You can also choose the output video format for your player from the drop-down list.