If it's 99.99% accurate arithmetic coding would have next to no data stored. Arithmetic coding is optimal in turning probabilistic data into lossless data. The

If it's 99.99% accurate arithmetic coding would have next to no data stored. Arithmetic coding is optimal in turning probabilistic data into lossless data. There's provably no way to do it more efficiently than arithmetic coding. The data it needs for corrections is smaller the better the predictions are. So given this why even dwell on ways that add any form of subjectivity. Arithmetic coding is there. It's a simple algorithm.