so at what percent would you REALLY be able to tell a significant sacrifice in picture quality, on a single layer DVD? for example, FlyBoys is around 70% compressed on a SL dvd+r, i have a 32" LCD tv with component video cables going to my DVD player. would i be able to tell a huge difference from it requiring no compression? the reason why i ask is, DL discs are significantly more expensive than single layers (even when on sale). opinions?