i recommend bigasoft youtube downloader pro
with it, آپ can easily achieve:
Download YouTube video, موسیقی video in HD 1080p/720p, 3D یا stand definition 360p/480p
Download video from all مقبول video sites like Facebook, Google Videos, Metacafe, eHow, Vimeo, MTV, BBC, Dailymotion, etc.
One-step download and convert YouTube ویڈیوز and other online video to almost all مقبول video formats including MP4, AVI, MPG, WMV یا HD MP4 (H.264, Xvid), HD AVI (Xvid), DV, ProRes, 3GP, MOV, MKV, VOB, RMVB and etc
Fast download and convert YouTube video, موسیقی video to all مقبول 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 سے طرف کی step guide on how to use it at
link