It seems to be happening quite a bit, but only with torrents from this site. Sometimes I managed to download some of the file before the error, but quite often I get the error right at the start and get nothing. The really annoying thing is I can never find the page I downloaded it from again, even with the search function. The most recent one is only a day or so old, and its already dead.

The only thing I can think of is that the torrent might have been removed by staff for rule infringements or as a duplicate. Would it be possible, instead of simply deleting all the duplicates straight away, for staff to perhaps mark the torrent as a duplicate and have the download link send you to the page for the original upload? This would make things so much easier for us. The original uploader would still get his credit, but it would give the rest of us a way of getting the file we've already started downloading.