4Videosoft iPhone 4S Video Converter - Version 5.0.18 4Videosoft iPhone 4S Video Converter can convert any popular video formats to iPhone 4S compatible video/audio formats, such as MP4, AVI, MOV, MP3, WAV, M4A, etc. It also can be used to convert between audio files. It provides you with powerful editing functions for you to optimize your video effect. You can adjust video Brightness, Contrast, Saturation and Aspect Ratio, ect. Now 6X faster conversion speed with NVIDIA? CUDA?/AMD APP tec