My guess if the file is bogus or corrupt or a virus;
http://www.gnutellaforums.com/downlo...load-help.html
When downloading audio files, be sure they show a bit-rate in the search results. And compare to others in search list or in your iTunes to be sure the bit rate seems to match the file size.
BTW the most recent iTunes version does not work well with LW. Files will auto import or add normally. However the LW playlist no longer works with iTunes. That is an iTunes bug, not a LW bug.
I am very curious to know why the files are showing as green. Do they show the iTunes icon?