Shadow , bluray was not the reason the ps3 wasn't hacked. As I've said dumps of games have been avalible since the first months of the console's release. Bluray movies were also hacked.
It was the os and the systems built into the actual console that stoped it form being hacked for so long. Bluray was the weak link in it. You can't get the ps3 to read dumps of bluray games not because of bluray but because of security built into the ps3 , not built into blurays (which btw i can now have my ps3 run dumps to bluray.)
if make 1:1 copies of Blurays 1:1 then you dont even need to hack the PS3. The reason you cant do that is because burners wont do 1:1 copies and pressing them yourself is not feasible.
With flash-media and a bit of electronics its way easier to replicate them. using a DS-Cart you will be able to play the media you perfectly be able to replicate, with any current and future DS-Console. Without any modification to the console.
Now try loading Isos in PSP3000 or new PS3s. Even if eg. XBox360 seems to be a losing battle, there still is alot inconvenience involved. With those flash-carts pirates are indistinguishable from regular users.
One way around flash being so easy to replicate. Use a custom form factor and connector type for the flash. If you make it small like a micro sd card then there wont be any copying going on. Look at the ds, the ds cart is as large as an sd card. What made it possible to hack was micro sd. You wouldn't be able to hack it with sd or mini sd.
So then you get a small adapter with a cable leading to the real flash cart.
But anyway you do it, you have to stay away from just using a consumer-solution like micro-sd, which practically drives up you costs since you suddenly cant use the insane volumes that those consumer-solutions have. If you are a bit less concerned about security it will need some (quite alot) technical measures to ensure you cant just "electrically emulate" original carts.
The hack-ability of consoles is also a concern, but unrelated to that.
Flash-carts are an additional issue - you just need to emulate the electrical contacts so to speak and you just need 1 cart for as many games as you want.
replicating optical media is not feasible until you got big plants.