Not having looked at the avi container format why would you say it's impractical? Certainly a 'normal' sized avi would be impractical but what about a 10x10 gri

Not having looked at the avi container format why would you say it's impractical? Certainly a 'normal' sized avi would be impractical but what about a 10x10 grid of pixels? The algorithm is unchanged, why should the size of N matter?