The IBW-572's correct extension is ".m2ts", it's a blu-ray rip. I'm not sure what codec MPC would need, I was using the Kawaii codec pack on windows but it seems abandoned. Thanks for the heads up there, I actually saw that one had a fresh comment but thought it had been posted before.
I'm not big on discussing the actual videos, after I did a fair amount of amazon turk's to name online videos actually talking about scenes just seems silly. Uh, a couple of random thoughts on related subjects. Though not my favorite actress, Azuki is one of the best to follow on twitter. Constant photos, talk about masturbation to other JAV videos, and I think she pierced her nipple with a nametag?
I'm intrigued by the "twitcasting" that many of the actresses do. Most of them end up deleted right away, which makes me think they'd be worth watching, but the ones that aren't deleted are usually boring as hell. I'm tempted to try to set up something to auto-record them. Similarly, the NicoNico live shows sound interesting, but I doubt they're worth $15 a month and that site is a pain to navigate.
Ktribe is another studio that really needs to seperate their compilations, and preferably their plump videos too. That is the area minimum really excels at, every MUM is a completely new video of the same theme. Mousozoku has to be the worst, ID codes with like 4 videos total, no consistency in the themes, and no cast listings.