my all regions dvd won't play
I am running Mojave 10.14 on a Macbook Pro and am using a LG Slim portable DVD writer drive that I just bought in the US on Amazon. I am trying to play an all regions DVD and am getting the following error message: "You need to select the region for your DVD drive - The region assigned to this disc doesn't match the region assigned to the DVD drive - To play this disc, you must change the drive's region - you can only change the drive's region 5 more times" In the same Error message window it says that the drive's current region is 1. What is the problem - Why won't the DVD play and why am I getting this error message?
Thanks for any help!
Peace