Soon after AnyDVD's original company stopped updating and it changed hands, requiring a new purchase, I quit backing up my movies. Yesterday, I decided to bite the bullet and re-up since things appear to be both stable and somewhat reasonable in price. So today I backed up 3 movies: The Martian, Logan, and Rogue One. I've used 20 for compression for years and used it this time around. And all three file sizes are significantly smaller than I expected, and what I would consider similar movies backed up a couple of years ago. I used CUDA with a GTX670. And I set it to full quality effort over speed. I've not watched these on an HD TV yet. I've only skipped around the .MP4 file on a 24" monitor. I've not immediately noticed quality issues. Is there something I may have misconfigured and I'm going to notice glaring quality issues? Or have there been the level of compression improvements that equate to an almost 50% reduction in .MP4 file sizes? Thanks.