Wadia 301 disc read error

My Wadia 301 is not reading some of the cd's properly. I get a "04" on the display. If I press play it plays the entire disc but I've no control. Other than the STOP button, nothing else works either on the player buttons or the Remote.

I've emailed Wadia and they told me that it could be laser, so after consulting with GNSC, I've the laser replaced by Steve at GNSC but it did not fix the problem.

The interesting thing is that if I copy the cd which 301 have issue into a cd-r using EAC or any cd copying software, the player plays the cd fine, no error, everything works just fine.

Anyone have encountered this problem or know anything about this ?