I have a Panasonic DVD. I have a Panasonic DVD recorder which is approx 4-5 years old (model EM 10

Question

I have a Panasonic DVD recorder which is approx 4-5 years old (model EM 10 ?). The machine will play original DVD's but will not play copied DVD's or CD's (even copied DVD's using the recorder itself). The DVD player makes funny noises whilst trying to read the disk and takes several minutes. Is this enough information to help with the problem?