DRM doesn't work nearly as well as password stretching. I can sit down for a few hours with IDA and crack nearly any DRM scheme. With password stretching, the

DRM doesn't work nearly as well as password stretching. I can sit down for a few hours with IDA and crack nearly any DRM scheme. With password stretching, the result of how long attacks will take is predictable and they can actually be made difficult or require more hardware (and at larger expense) rather than simply requiring a more skilled attacker.