Sony BDP-S360. I think it's still the 006 firmware and they just came out with 007 about two months ago, so I'm working on upgrading it. Still, the disc should work either way, right?

As for IMGBurn, I don't know how I did it before, but when I just tried it now, I seem to get stuck in a loop. I select the ISO and it tells me "You should have selected the MDS file - we'll do it for you". It tries to do that, at which point it spits back "Unsupported file format". I'm on IMGBurn 2.5.0.0, whereas my previous attempts were with the earlier version 2.4.3.0 (I think...don't remember the numbers...point is, I recently upgraded)

Now what?