mpc 2500 unresponsive when loading cd

Completely new to mpc, got a brand new mpc 2500 special edition for cheap.

The mpc becomes more or less unresponsive when trying to load songs from audio-cds. I have tried about ten different cds, more or less new. I get the track size and try loading (DO IT) - and nothing happens.

Out of the ten cds I tried only one has been possible to play. And this one is skipping, and suddenly changes tracks when playing, and at track four became unresponsive as well.

Some times I can push the main-button and get back to the mainscreen, while other times it just stays in the loading-screen.

There is 128MB memory and 128MB flash-card innstalled, with about 4 MB used already. The tracks I have tried loading are from 30-50MB so it should be enough...

My guess is it is a cd-rom-problem.

I'm running the original OS that came with the MPC.

Any solutions?

(Should I in any case install JJOS or something similar, is that reccommended in general?)

you don't LOAD songs from an audio CD... LOADing is for WAV files and programs/sequences... for audio CDs you sample bits by playing the CD from the RECORD screen.

Aha! thanks Unfortunately the MPC says "disk not ready" also from the record-page.. Again - tried many different cds.

And the cursor-keys etc do not work -even the jog-wheel (to change back to analog) or main-key. :/