Outside the ability of removing the Blu-Ray/DVDs from the vault is there other advantages-size? To be more direct does anyone know the size of a store Blu-Ray and/or DVD quality copy vs. the average of a Blu-Ray/DVD disc? I am curious if it is smart to purchase the digital upgrades or replace some of my Blu-Ray discs with my UV digital versions that I already own. I am trying to maximize my server space until I purchase a new 1U/3U. Thoughts?