I disagree with this. For non-cryptographic purposes, the Mersenne Twister is very pseudorandom, has a huge period, and is competitively fast. There are also

I disagree with this. For non-cryptographic purposes, the Mersenne Twister is very pseudorandom, has a huge period, and is competitively fast. There are also related shift-register techniques that have these properties. The state of the art in PRNG's is still advancing, but it takes a fairly esoteric example to find a blind spot of the MT (if initialized properly, as wrappers should do). Way outside the "generate a random 512x512 bitmap" variety.