Likewise I do the same. It's most of what I dwnld. So you've found the spam. The way to get rid of spam other than ignoring it now you know one of its sizes, is to apply filters. Go to your LW menu Tools>Options>Filters>Keyword & individually add each of the following words: .exe .jpg .wmv & press the Apply button. These can be added/removed as it suits you.

I generally do general searches b/c I find that's where these recordings are best found. I use the band name dash & year or location or both.

eg: Mickey - live Siberia - 1902 OR I might just use the location & maybe year; eg: Gastro Theatre, Siberia 1902 OR say use: Mickey - 1902

You can try all combinations of search criteria. Some problems with using the word live is that just occasionally you end up with a band of that name in the results. You can also try an audio type search. But as I suggsted, these don't seem to be as successful for me. Not for live recordings. Good luck!