New
#21
The problem is the almost same quality, as you mentioned.
With a DVD versus a RIP, I get true quality (not talking HD or BD, either, just plain old DVD). I can pick up about 6 different Video formats, all of which I have used to watch, say, my disc 3 of Battlestar Galactica Season 3 series - and every single one of them showed discoloration or else pixelation when watched at full screen on my 1680 x 1050 wide screen monitors. If I were to watch it on a large digital TV, the discrepancies would be even more readily obvious.
I have a very high quality Dark Knight in the MKV container - an it still shows problems every once in a blue moon, (or in very specific scene transitions) that I never saw watching it 3 different times in the movie theater. As I don't have a BD player yet, I cannot compare what my original BD looks like on this monitor, but I had a friend of mine rip it for me - it is large, at 14 GB, but still not up to quality of the original as seen on his BD player and monstrous 36" monitor.
Just as there are audiophiles (of which I am one) that cannot stand anything below a 320 bitrate for MP3s an prefer lossless codecs to lossy, there are those of us who prefer as near perfect visual entertainment as well (Visuophiles?). And, seeing as I have 1.25 TB of space, I can afford to keep movies on my system, deleting them an recreating the ISOs on the fly - I almost always abhor ripping, b/c I am very critical of the cinematography as it is, and imperfections from ripping only server to raise my gorge.
You're suggesting something that is out of scope and has been suggest more than once already in this thread - please keep the discussion topical - the OP wants to mount and play the ISO and is not interested in ripping.