Aiseesoft HD Video Converter is the best HD Converter to convert HD and general videos to any video(AMV, ASF, AVI, DivX, Flash H264, FLV, SWF, H.264 AVI, H.264/MPEG-4 AVC, M4V MPEG-4, MOV, MKV, MPEG-1, MPEG-2, MPEG-4, MTV, VOB, WMV, XviD, DV, MPG, WebM, HD video) and audio(AAC, AC3, AMR, FLAC, show more » M4A, MKA, MP2, MP3, OGG, WAV, WMA, AIFF, AU) format. Also it allows you to convert among any audio. Moreover, it will bring you much faster converting speed with AMD APP and NVIDIA CUDA technology, and it can also support 5.1 channel audio.