Check videos with
Bitzi Web Lookup before d/loading. It'll help you sort out the good ones. While on the Bitzi site, search for the file there and use the magnet link to start the d/load in limewire. Then search for it again in LW to help find some sources for the file.
Also preview the file when it gets to 10-15% to check that it's what the title says and not mislabeled porn.
See:
Fake files showing up in search results
Also:
Problems with the search How to find music(and video)