So after 3 pages are we anywhere close to answering the OP's question ?
If the uncompressed source does not offer much difference compared to the compressed rip in terms of viewing quality then yes. In this case how far one sits from the screen taking into account its size will be sufficient.
So how about between 4GB rips & 8GB rips. The only way i think one could tell the difference is if one had a massive screen, say 50" or above. I suppose you coulde tell the difference if you tried hard enough with smaller screens but that's cheating. If its not apparent at first glance then for all intents & purposes its good enough.