Best DVD compressing app?

[headless chicken]

I have a 8.3GB DVD that I created that I planned to burn to a Verbatim DVD+R DL disc. After setting up the project in Toast, I learned these discs are only capable of holding 7.96GB (and not the advertized 8.5GB) of data--much to my dismay.

Anyway, was wondering which commercially available application to invest in for the best quality shrinking results: DVDRemaster Pro, DVD2oneX or some other program. How about compressing with Toast? Opinions?

[Case]

I learned these discs are only capable of holding 7.96GB (and not the advertized 8.5GB) of data--much to my dismay.

True capacity information is widely available.

DVDRemaster Pro / DVD2oneX / Toast

If you google for differences, DVD2oneX seems to produce working output for a few specific titles that DVDRemaster's and Toast's requantizing wouldn't, which may have to do with ripping and copy protection schemes. This 'feature' does not apply to home-made DVDs that were encoded without CP.
DVD2oneX offers several types of requantizing, which should provide possibly better quality.
For just trimming down to 95% (8.3 > 7.96), I don't think the resulting quality with any of these tools would differ enough to be noticeable.