That autopsy scene was cut down a bit. There was more of the remains and more description of the attack but in editing they thought it dragged on a bit unnecessarily.

Also in that Quint scene, his Manchette swaps hands.

There's a load in Jaw, like the "Orca" sign looks shiny in some scenes and not in others.

All these errors are sound obviously, I suppose back when they were making it they didnt realise nutjobs like us film fans nowadays would be watching it 8304 times.