Those have gotten pricey and hard to find so a pair of standard edition box sets are now coming out.
The distributor brought out the TV series previously in six singles and then as two sets of limited edition box sets, the latter of which landed in 2016.
Warner Bros. Japan is seeding the field a bit ahead of a new feature film for Shirobako due out next year.
P.A. Works was established back in 2000 by Kenji Horikawa, who has been involved in several animation studios previously.