http://discuss.i2p/viewtopic.php?p=512
If you're actively looking for artifacts, standing 6 inches from the screen or frame peeping you will see compression. Depending on the scene you may see compression without looking for it, it's not a truly transparent encode, i make some tradeoffs. i don't think i've shared double pass encodes here, since they're are easy to find (megusta, psa, tgx rarbg: i think all do this or used to do this).