The teaching content of this DVD collection is great. About what you would expect from Ravi and friends. What wasn't so great was the actual quality of the disks themselves. They seem to have been made cheaply. I don't know if it was due to region codes, video formats or what the issue was but we have had problems getting a couple of them to play in our church's DVD player. This is NOT typical for us. We were able to solve this problem by playing the DVDs in our computer using the DVD drive. Fortunately we are set up at our church to play DVDs that way and get them through our projector. Otherwise we would have been stuck at the last minute with no back up plan. I would expect DVDs sold through a commercial distributor to have been produced in such a way that they would pretty much play in any DVD player (unless notice was given that there may be limitations).