My dvd/cd-rom is not reading as it was supposed to
I'm having some problems with my dvd rom on linux. I don't know which model it is, but it is from lg.
Well the problem is, i got a dvd full of mp3, so i mounted it and started to copy to my hard disk, on the second music it gave me a error saying that was impossible to read the file. I tried again, same error.
After sometime, i tried to copy using windows and it copied everything without error.
When using mplayer i can't read dvd as good as i want. Some dvd just don't work, some stop playing in the middle of the movie. Well that's strange.
How can i fix this?