Thanks to LotR and merci to Murakame for your answers. I don't have any trouble identifying the files I described. Mainly, I was wondering why Limewire tolerates them. I appreciate the other tips, though, and will watch for them.

Are there any other Limewire Pro users out there who have tried to contact the so-called "online help" that they advertise to persuade the small subscription (donatioin, really) price? I have now tried five messages and the only answers I have received are five 'bots' containing my message and the statement that it has been sent to the "online assistance team' and I should expect a reply shortly. As far as I can tell, the "team" must reside in a black hole because no communication from them ever appears to emerge.

In all, it's a pretty good service and I didn't expect much more for my $18.88 than I got for nothing. I sent it primarily as a donation, but I do rather resent completely false advertising if, indeed, it is such. Anyone else out there with experience with them?