4Easysoft Mac HD Converter can convert nearly all HD video on Mac at fastest speed with excellent output quality. It can easily convert any HD video to other HD video, general video and convert among general videos on Mac. Also, 4Easysoft HD Converter has the ability to optimize the output video. It can adjust video visual effect, time-length, play screen, etc. Key functions: 1.Available to obtain audios You can obtain audios like AAC, AC3, AIFF, AMR, AU, FLAC, MP3, M4V, MP2, OGG, WAV, WMA by converting HD video to audio, converting SD video to audio and converting among audio files. 2.Get multiple file outputs for one source It is available for you to get various output formats with one input video file. 3.Strong applicability With 4Easysoft Mac HD Converter, you can apply your converted files on iPod, iPhone, Apple TV, PSP, PS3,Wii, Zune, Xbox, Google Phone, Sony Walkman, Archos, Creative Zen, iRiver, BlackBerry, Motorola, LG, Sony Ericsson, Mobile Phone, etc. 4.Adjust video play screen Adjust the aspect ratio and get rid of the unwanted edges to get the suitable video play screen for your player. 5.Trim and clip your favorite video The Mac HD converter allow you to exactly trim your video file to retain desired video clips and cut out unwanted video segments. 6.Merge video files With 4Easysoft Mac HD Converter, you can join several video files into one file for enjoyment. 7.Adjustable setting parameters With 4Easysoft Mac HD Converter, you can adjust video and audio parameters to get the best effects, such as Encoder, Frame Rate, Resolution, Bitrate and Encoder, Channels, Bitrate, Sample Rate. 8.Preview You can preview the original video and converted video at the same time so as to better optimize the output video. 9.Easy to operate 4Easysoft Mac HD Converter has intuitive interface, which is easy even for beginners. And the video converting speed is very fast.