How it works
If we deal with an audio file in a torrent, moderators cut out small pieces of it for users to make sure the file has the qualities that user wants. They can preview 20 seconds of the audio tracks, to avoid downloading the wrong files, wasting precious time and bandwidth.
If we deal with a text description in a torrent file, it is saved so users can read it before downloading to check if the content suits them.
BitTorrent tracker Vertor scans, verifies and previews BitTorrent downloads so that you don't end up with viruses or unnecessary downloads. It makes so by downloading every torrent file it finds and checking these files for all kinds of viruses. If what you download is a torrent file, Vertor takes extracts stills from it and posts them on the site so you can have a better idea of the file and quality of the download for yourself.