I'm using the DVDR Guide for dummies it's an invaluable resource.

When I use TMPGenc to make the rip smaller I find that under Forced Film setting it's defaulted I Believe to 50%. So the file is roughly about half the size. If I feel I want to try to get less compression and use a bit more of the disc space Do I increase this setting ? I Believe so. I think I could bump this up to 70-75% and get a bit better picture while still fitting on 1 DVD+R

Am I right in assuming this?