Are the WB Made on Demand (MOD) discs DVD-R or are the actual silver DVDs.

Thanks in advance

DVD-R

See these threads:
http://forum.dvdtalk.com/dvd-talk/55...films-dvd.html
http://forum.dvdtalk.com/dvd-talk/57...ead-dvd-r.html

They're a special type of DVD-R too which can accomidate CSS encryption (they have some sort of special code in the middle)- apparently normal blanks don't. A by-product of this is that some computer drives can't read them, as they just keep spinning trying to figure out what type of disc it is.

I'm still wondering if any titles use dual-layer blanks.

Sonic calls its CSS-protected DVD-R technology Q-Flix
http://en.wikipedia.org/wiki/Qflix

Double-layered CSS DVD-Rs seem to be relatively new, only being announced on Sept 21, 2010:
http://www.sonic.com/about/press/new...libraries.aspx

I still can't buy into this whole idea. Years ago when video games were making the transition from cartridges to CDs, one of the selling points I distinctly recall was that there would be no more "rare" games (rights issues notwithstanding). To make a run of cartridges, you apparently had to invest in a sizable amount in order to make it profitable, but with disc based media any game that sold out could have smaller supplemental pressings done at the drop of the hat. And we're now a good 13 years into the DVD format, hasn't the prices dropped to a point where you can do a small-ish run of pressed discs and still make your money back?

It all depends on what the movie is. If it's some obscure movie that has a loyal fanbase, but wouldn't sell, let's say 100,000 copies, then it would cost more to make actual commercial dvds than the DVD-R MOD discs. But if they use the DVD-R discs, then they're not out all that much if they don't sell well. Well, they're out either way if a title doesn't sell, but much less so with DVD-R.

Actually, at 100,000 copies, pressed discs would be cheaper. I think you have to get under 1,000 copies before the manufacturing costs of DVD-R are close to pressed discs.

Of course, the main advantage of DVD-R is on-demand manufacturing, meaning you never have excess stock that needs to be stored (at a cost), marked down, and/or destroyed.

On-demand game discs would be interesting, although I think that's been overtaken by direct downloads to game consoles and PCs.