I noticed something unusual, yet positive, about DVD Shrink. On most of my backups, it will say the compression rate is somewhere between 53-64%, with all of the files still in tact. Later on, I burn the DVD files with CloneDVD, and play it on my DVD player. And guess what? The quality, to me, looks 100% clean.
So, is the DVD Shrink "compression" just some random gimic? It doesn't cause any troubles.
*And I don't use DA for encoding.