[PaulDavisThe1st]

Although NVMe/SSD drives have changed things a lot, any media creation software is still IO bound in the sense that:

a. you cannot plan to read data from disk on demand, because it will take too long (still!), and it will almost certainly block

b. you cannot plan to write data to disk on demand, because it will take too long (still!) and it will almost certainly block

c. the bandwidth is still a limit on the amount of data that can be handled. It is much higher than it was with spinners, but there is still a limit.