Nec 2510 not reading fine : help needed?

Hello all,

First thanks for all the info that already helped me choose my DVD recorder.

Bu tone of my problem is that I do not have a DVD reader, so I use my bran bew NEC 2510 as reader, and well, the first copied DVD I placed in it gave me horrible feelings: it was just freezing some times. not possible to watch movie.

And horror I tried it in my laptop DVD player ang it works just great…
And even in original movie DVD sometime I see like a small gap.

I have read in review that NEC does not read scratched dvd that well.
Will any firmware upgrade help in this matter?