ilivid is a video downloader cum player that lets you watch videos while downloading them from file sharing sites like RapidShare, MegaUpload or Hotfile. You can watch video within seconds after download starts.
This utility can automatically grabs video links in a web page and support both premium and non-premium user downloads.
It also supports all types of RAR archives-Rar video links, multi-volume Rar archives and password protected Rar files.
Note: ilivid is a freeware and it installs unnecessary toolbars in our computer. However, we checked this software with Virustotal for malware, but it is completely clean (see the result here). However use it at your own risk.