Mirai 40 speed writing problem

does anyone know the min requirements for writing at 40 speed without losing any buffers i am ok at 16x and below…


Min requirements? Can depend on various facts. If you copy on the fly, is you reader fast enough? How many programs are running in the background?

Btw, doesn’t the burner have buffer underrun protection? If so, why bother? Or am I missing the whole point.