i recommend bigasoft Youtube downloader pro
with it, te can easily achieve:
Download YouTube video, Musica video in HD 1080p/720p, 3D o stand definition 360p/480p
Download video from all popolare video sites like Facebook, Google Videos, Metacafe, eHow, Vimeo, MTV, BBC, Dailymotion, etc.
One-step download and convert YouTube video and other online video to almost all popolare video formats including MP4, AVI, MPG, WMV o HD MP4 (H.264, Xvid), HD AVI (Xvid), DV, ProRes, 3GP, MOV, MKV, VOB, RMVB and etc
Fast download and convert YouTube video, Musica video to all popolare audio formats like M4A, WAV, WMA, AIFF, FLAC, AAC, MP3, AC3, OGG, RA, MP2 and etc.
Windows version at
link Mac version at
link Step da step guide on how to use it at
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