ftp://ftp.dk.freebsd.org/pub/FreeBSD/releases/ISO-IMAGES/8.3/FreeBSD-8.3-RELEASE-amd64-dvd1.iso

 SHA256

ftp://ftp.dk.freebsd.org/pub/FreeBSD/releases/ISO-IMAGES/8.3/CHECKSUM.SHA256-amd64

torrent

http://torrents.freebsd.org:8080/torrents/c2245a53c58b08dbf7a0737b1b5acff614c8d6eb.torrent