Two months ago I had to switch to a new hosting platform for
mariolanzatenor.com after the previous host, Weebly, abruptly announced that it was withdrawing its services from South Korea (where I am based) and 60 or so other countries. The transfer process caused formatting problems on many of the pages, resulting in hundreds of hours of work for me, but it's ultimately proved a blessing in disguise, as I've been able to make numerous improvements to the site.
One of them is the Discography, which is now much more detailed than before and includes recommendations for the optimum CD source for most of Lanza's recordings: