I purchased both Seasons 1 & 2 for my husband. We opened Season 2 to play first and they would not play in our DVD player. Because of this we never did open Season 1 for fear of possibly getting stuck with both sets. First we thought it was our player and was stressed trying to figure out why it wasn't working. Checked all hook ups etc. and then tried a different DVD and it worked fine, along with another one. For some reason Season 2 would not play in our player. It would just read loading and would never load. We assumed Season 1 would probably do the same. Thank God we were able to return them.