I cleaned it with a eraser and did the 1mm trick and I got it working. I think there is something wrong with my PCE Hu card slot. the audio on all my Hu games sounds awful, scratchy and distorted. The CD sounds good though. All the caps were replaced a few months ago so I know that's not the problem. The volume is fine it's the sound of the actual games.
Also I have to fiddle with the 1mm trick to get all my Hu cards to work now.