Re- When editing .torrent files, any changes to the info dictionary will change the .torrent file's infohash. ----------------------------- Ok ,then why can www.torrenteditor.com and http://btreannouncer.net/ add tracker to torrent ,without changing the info hash ? Also, does this only happen when you do changes to the "info dictionary" ? or change the hash anyway ,regardless ? what is meant by the term " "info dictionary" ?. I just want to add multiple trackers.