> I tried putting 300000 in the entry box and still 
got 
> many files greater -- and often much greater -- than 
> 300K. I thought that maybe the enrty box specified 
> maximum KB, so I changed it to 300, deleted the 
> downloaded files, but still did same thing. Why?
I'll check that (added on the urgent TODO list) - for 
now, you can try this filter (options/filter rules):
-**[>300]
for exclude files greater than 300K