Biggest file size to retain quality



using this app, how big of a video file can one fit on a dvd-5 and still retain original/good quality? i have a couple big files that I want to burn and I know that to burn avi to dvd takes up a lot of space so i want to burn just the right amount without loosing much quality when the dvd is played in the dvd-player. thanks for the help


With normal files (not High quality HDTV) usually 3-4 hours.