if you are lucky – it will be a problem with the camera – try another camera – see if the problem is the tape or the player ( hope that the problem is the camera's ability to play the tape)
if there is nothing on the tape – that is sad
you will have to try to find people who were at the wedding who shot either professionally or with the phones – still photos – whatever you can possible recover to try to salvage something
a proper wedding camera would have a 2nd memory writting a digital back-up – or – a second / third shooter – and continiously runnng 'security' cams – you should never depend upon one camera
hopefully — the tape has the event and you dodged a bullet — but i'd return that camera and get one that has backup built-in – as this one is not suitable – and if Sony markets it as a proper event camera – they mis-represented it – sorry for the stress it caused – you are inexperienced – but whoever sold it to you should have known better — and I even wonder if the reviews of the camera ever mentioned dual-data writting and instant review functions
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