I use the convertxtodvd program to burn my dvds, but for an 8.5gb disc it only allows 2 films that are 'excellent' quality before the whole quality of the films lessens once i put another file on for burning. However, last year, on a 4.7gb disc, i was able to use almost all of the disc size with the quality remaining the same (as it was on the computer). Is there a way that convertxtodvd can be altered in the settings so the quality always remains the same, and if not, can you tell me a program that allows for an 8.5gb dvd to be burnt with almost 8.5gb worth of files on it? Thanks.