There are two main standards for DVDs – PAL and NTSC. This can be a little confusing for people when they are buying DVDs, because they don’t know which format to go for.

PAL is the European standard, and NTSC is the American/Japanese standard. The two formats are not compatible with each other, so you can’t play a PAL DVD on a NTSC DVD player, and vice versa.

The main difference between the two formats is the frame rate. PAL DVDs run at 25 frames per second, while NTSC DVDs run at 30 frames per second. This means that PAL …