Hmm well it sounds suspicious then. Many people (the wise ones) will only download files that are verified as being good on Bitzi. BTW you can search Bitzi for the file you're after & look at other terms the file is known under. That can help you search for them.
If downlding videos, be wary of RAZA (Shareaza) users. Whilst they often have very good files, due to them connecting to more than one network & using most of their bandwidth on the other networks, they don't leave much left over for the gnutella network. They can be very difficult to connect to & if you can, they are unreliable & frequently very slow to downld from. Right-click the top of the search results window column & choose to show Vendor/Version. You can do the same with the downld & upload windows.