Its not necessarily extra work, first its not lossless second as its a compressed format it takes a little cpu on the BM card so no problem there, and at last it reduce the bandwidth needed from hard drives a lot so you can capture without a big fat raid 0 or 5 backing up. So its good when you don’t have enough drive space or bandwidth on the drives when using multilayer video in HD 4:2:2 its almost unavoidable.