Tell me about how to fix a DVD

[eppy]

I have had Tenacious D for not even a month. I have watched it 5 times total. 2 on the computer and 3 on my tv in a DVD player and it suddenly stopped working. It has no scratches. I have tried it on 4 DVD players besides my own, I haven't tried mine recently, but it will not play. It says error and no. It works on computers but not in DVD players. Why? Help?

[ninja9578]

Try washing it with a microfiber cloth. Then make a copy of it for backup

[eppy]

Yeah. Maybe I'll back it up. But I just read on the back of the case that it only works on some players. So I guess that's why it hasn't worked.