Here's some tips to identify phony files. Any file that shows a bit rate of 768 in the grey properties popup is almost certainly garbage. Same for any file that shows "Title: not related" in that popup. Titles such as Rare Recording, Eighties classic, Wicked Remix, Totally Hip Track, Rare Recording, or a form like 01 Track 7 are also junk.
To mark a file as junk, right click on the file, select Mark As, and then Junk. When a file is downloaded from this source in the future it will have a trash can icon with it. There is also a right click function called Block Host. It will supposedly block files from that IP address, but I'm not sure how well that will works. Once I put an address on the Block list I don't get anymore junk files. But there are a lot of pc's out there spreading the stuff. In the past week, I've identified about 140 unique IP addresses sending these crap files. So that might be an exercise in futility. I've noticed that this kind of crap has been steadily increasing over the past year or so. I'm afraid that over time this network will be overwhelmed by these jerks.