Finding an official, direct download for version 8.0 is difficult because the software is no longer officially supported by Sony or its successor, MAGIX. Official Account Downloads
: Includes Dolby Digital® AC-3 encoding software for 5.1 multichannel surround sound production. sony vegas pro 8.0 download
If you own a valid serial number for Vegas Pro 8.0, you may be able to find the installer from legitimate software archives. Finding an official, direct download for version 8