Here's the notice from the manufacturer's page:
Product Note

There was an error in the first run of My Little Pony Equestria Girls Rainbow Rocks that affected the playback. Product sold from this page is from a new, corrected production and is error-free. This product will ship by 11/7/14 or earlier.

The error affects all DVD product initially shipped and on store shelves beginning 10/28/14 in the U.S. and Canada. The error causes chapters 5 and 6 to play in reverse when the DVD is played from the main menu ‘Play’ listing. Customers who navigate to the chapters menu and begin playback from the first chapter do not experience the same error and will see the story sequenced as it was meant to be seen. The Blu-rays and the digital copies for sale or included in the Combo pack are not affected, but the DVD inside the Combo pack will also have the outlined error.

This is a very unfortunate error and we are deeply sorry for any inconvenience it may cause. If you have purchased a DVD with the error, please visit http://bit.ly/1tdBGZE. Shout! Factory will be shipping replacement DVDs directly to customers, and replacement product to stores, as soon as possible.





I'm optimistic, although it's tempered a bit by not knowing how involved the show's production staff is going to be with it. I know it's being written by someone new who apparently did uncredited work on the "Ice Age" films.