Both discs are damaged, possibly during the actual manufacturing or burning of the discs. There are large swirl-type patterns around the read faces of both discs that will not polish out with a micro fiber cloth. Therefore, parts of some of the episodes freeze up, and the discs skip to the next undamaged chapter, which is usually multiple chapters. Amazon does not replace these discs and they won't exchange the season for another title, because they are opened. I may try a buffing wheel, but I'm not sure it will help, as the marks don't appear to be scratches, but a defect in the discs themselves. I also bought Season 2 and 3 which are not damaged and play without incident.