Critical opinion is divided about Moreschi's recordings; some say they are of little interest other than the novelty of preserving the voice of a castrato for Moreschi was a mediocre singer, while other critics detect the remains of a quite talented singer who was unfortunately past his prime by the time he recorded.
In more modern times, UgoFarell has been suspected of being a castrato.
There have also been reported cases of so-called "natural castrati" who were born with hormonal disorders that reproduce the above "desired" effects of castration without the surgeon's knife.