Sorry if i'm harsh, this is just getting silly. Even moderators get irritated, but like the other mods here i have two hats, and i'm in this thread as a normal poster. As i say you're entitled to your opinions, i just don't know what more you want. And i don't know what more i can do, i'd already made my opinions on discs as clear as mud, i thought i was at least helpful. The other guys are giving their own personal experiences, and Joe is giving that plus his indepth knowledge of the hardware/the industry and media manufacture, i don't see what else anyone can answer, there's easy ways to find out the different MID codes for most discs, the only bit i think that's tricky is the bit that i refer to as a lottery, ie if there isn't a way to distinguish the different MID codes from the tubs/packaging of discs (the way you can with say, TY discs for example; this used to be the case a couple years ago, don't know if it still is) then you can't guarantee exactly what MID codes you will get from any given tub of Memorex or whatever brand. My knowledge of media is probably a couple years old now as that's the last time i bulk bought anything, and i only ever bulk buy, i just gave up keeping up with the various media out there. I just use TY, Verbatim, Maxell 16x +R (which used to code out as RICOHJPNR03 but now it's only CMC MAG M01 i think, but that's ok as they are excellent discs), and what i refer to as 'sexy Verbatim TY', the fabled TYG02 discs that Verbatim were selling back in 2005; i bought large amounts of those back in 2005 and am only now making a dent in them as i normally only use Verbatim and Maxell. These TYG02 survived extreme temperatures as i lived afloat for a few years and all my blank media (and backups) lived on the floor of the boat ie a foot or so under the waterline so my faith in media is a lot better than it used to be. Just remembered, as i say i use stupid amounts of the Maxell, which used to only be RICOHJPNR03 (and that's what i would always specifically order), then one day i noticed the MID code from a disc out of a new tub was CMC MAG M01. I was annoyed and thought there'd been a mistake or something. Contacted the supplier and it they said that they could no longer guarantee whether you would get RICOHJPNR03 or the CMC's. I made noises about sending them back, then realised i'd opened all the tubs and swapped discs around various other tubs so the discs were completely mixed up and there was no way i was going to check thru two or three thousand discs to determine which were the CMC discs. So i put aside my ignorance/bias of CMC and used them. Never looked back; haven't used any other CMC, but only because i stick with the discs i'm used to and only change if there's no alternative; just habit. And when we say Verbatim it could mean CMC and i think Prodisc, so my point is that we can get biased about brands/companies when maybe we needn't. I said it further up the thread but i can't comment on Dual Layer media or xbox 360 burning specifically, however my comments i think are still relevant enough to the discussion so should help in some way, hopefully. End of war and peace, i'll shut up now.