No it doesn't, Lynn. The most pirated game in 2008 was, apparently, Spore - which is protected by SecuROM Internet Edition.
Doesn't say anything about the numbers in which it distributes illegaly when it would or wouldn't have copyright protection. It only says something about the number of illegal copies of Spore vs illegal copies of other games.
Only if other games that don't have copyright protection still get pirated less, it would say something about the effect of securom (or about the popularity of the game). But it still could very well be that, would Spore not have SecuROM, there would be even more pirated copies (and less legitimate sells).
There is always a fraction of people who would buy the game (when it has protection) instead of get it illegaly. When the revenue out that fraction is bigger then the costs of the protection, the protection is a good idea. Loss of revenue due to people not buying the game because of the protection (at least some people here) should also be factored in. You'd probably get quite a complex formula, all things included. I don't have it ;), but I believe that Lynn has better access to that kind of research then I do, so when she says 'tremendously', I do believe the protection would help (though I am surprised myself by 'tremendously'. Thats alot).
