Comment Re:ECC? (Score 1) 155
There's also the matter that better ECCs cost more overhead. You can detect single bit errors with a simple parity bit, but double errors will go undetected. And even something like Reed-Solomon can't correct all the errors it can detect. Spacecraft going to mars have very limited mass budgets, there are often better places to spend the extra mass than on an additional redundant flash chip (and associated circuitry).