Whilst I can sympathise with your obvious disappointment, I can't see why your gripe is with PayPal. Surely they're just the method of payment? You could equally have sent a cheque in the post - would you have asked your bank to refund you? Buying something on eBay is a bit different as they effectively sell the product on behalf of the original

You should be able to eject a DVD with the Beo4. Select DVD then press and hold STOP. It works on mine. Pity the Beo5 isn't working propoerly yet!