On Disc 1, go to the "bonus Features" menu and highlight "register your DVD" press "up" and Donald's head will highlight, press "Enter" and you will see a clip from "The Reluctant Dragon" where Robert Benchley meets Clarence Nash.
On disc 2 go to the "Bonus Feature" menu and press "left" the "Angel" Donald will highlight, press "enter" and you will see a clip from "The Reluctant Dragon" where Donald shows Robert Benchley how animation works. also on the Disc 2 bonus feature menu, highlight "main menu" and press "right" the "Devil" Donald will highlight, press "enter" and you will see a short film called "The Volunteer Worker" where Donald shows the virtues of giving to charity.
Reviews: DVD Talk also has a review of
Walt Disney Treasures: The Chronological Donald by John Sinnott.