Aiseesoft YouTube Converter Mate is not only a Total Video Converter but also an online YouTube Video Downloader. It can convert between all the popular video formats, including FLV, MP4, H.264, AVI, MP3, WMV, WMA, FLV, MKV, MPEG-1, MPEG-2, 3GP, 3GPP, VOB, DivX, Mov, RM, RMVB, M4A, AAC, WAV, etc with high speed and excellent sound/image quality. It works perfectly with PSP, iPod, iPhone (3G), iPhone, Zune, Zune 2, Blackberry, Nokia, Creative Zen, Sony Walkman, iRiver PMP, Archos, PS3, Apple TV, Xbox, iPAQ, Pocket PC, Mobile Phone, etc. The most attractive function of this best YouTube Converter Mate is that it can help you download online videos from YouTube, Metacafe, Google Video, Yahoo Video, Myspace, i'Film and many other online video websites and convert them for your portable devices. This best YouTube Cibverter Mate allows you to do whatever video editing you want. You can pick up one part of your video to convert, remove the black edges of your video, take a snapshot of the picture you like, put two or more files into one output file and so on. Key Functions 1.Download online video Aiseesoft YouTube Converter Mate can help you download online video from YouTube, Google Video, Yahoo Video, Myspace and Metacafe and other website easily. 2.Convert YouTube video and other videos for your portable devices Aiseesoft YouTube Converter Mate can convert YouTube videos and all kinds of videos for your iPod, iPhone, Zune, PSP, Blackberry and other players. 3.Video editing Aiseesoft YouTube Converter Mate can do trim, crop, merge into one file, snapshot and other video editing.