Sony CD media made by Moser Baer? I haven't had any MBI made Sony media yet, and I really bought a ton of these from retailers here in Germany (typical green Sony cakeboxes you see everywhere). I was just unlucky once, and got Daxon discs which didn't burn nearly as good as those Sony ATIP discs do. The cakebox looked exactly the same though, so I don't know how to tell the good from the marginal stuff.
Most Sony optical media sold in Europe these days should be made in Austria though (makes sense economically). Unfortunately, Sony (Europe) has a nasty habit of not printing the country of origin anywhere.