Dvdxcopy 1.2.2 Dvd-rw

[Kayliebug]

I am using a pioneer A05 and trying to copy DVD movies.
It backs them up just fine but when I go to play them on my PC or PS2 they start to work and the sound skips and the screen either freezes or is messed up. I am using DVD-RW media to make sure I don't make coasters. Do I have to use DVD-R or is there something else I am doing wrong.
I am using DVDXcopy version 1.2.2 with Nero.
Thanks for any help