Hi Neil,

with your disc 3 and 4 that eject, does it do the same for disc 1 and 2 ? This will tell you if the fact that it is already there is the issue. If Cd1 stays in then it is something else causing it (e.g. duff disc, scratched, not a compliant CD, copy protected etc).

As for your other issues noted, I'm not sure I recognise what you are describing (not able to check just now).

Rgds,
Nick