If your DVD player won’t play some DVDs, there a few possible explanations. One is that the DVD is scratched and therefore unreadable. Another is that the DVD player is not capable of playing DVDs that were created in a certain region. Finally, your DVD player may be dirty and need to be cleaned.

If the DVD is scratched, you may be able to fix it by using a DVD repair kit. If the DVD player is not capable of playing DVDs from a certain region, you can usually change the region code by using the DVD player’s remote control. …