at the moment if the downloads.dat file say, goes smaller than it was a few minutes ago, the utility will not make a back up until the downloads file reaches the same size or goes larger than it was. the thinking being if it drops in size that's likely to be a problem so don't back it up. but it does drop in size in correct use as things are finished downloading i think (that's right isn't it?). so i'm not sure how to handle that. what are the characteristics of a corrupt downloads file? disappeared/gone obviously. going back to a size of 4k was a very common one i remember (a fresh empty downloads.dat file which is actually probably a smaller than 4k but that's the smallest block size on a drive). do corrupt files ever have a larger size than 4k generally? i suspect the utility might be better continually making backups so long as there is a downloads.dat file that is greater than 4k in size (or maybe a 10k to be safe) regardless of if it's got smaller or not. any thoughts?