No,I checked for the legitimacy of Xvid.com and they were all positive. To check whether a site is legit usually, I do follow a simple checklist to see how well they do.
1) Use WhoisXY.com to check the whois information and check whether the contact information matches with the one in the website.
2) In the domain contact details, is there a valid email address.
3) Is there a valid phone number visible, and does it work ?
4) Go through review about them using Webutations.org and check whether they are scam free.
I followed the above steps for Xvid.com and found that they are very safe and scam free.