Classical collectors, be sure to check out A Classical Discography, another outstanding free online database. It’s compiled by Michael Gray (who was also a major contributor to CHARM) and focuses on major-label 78s and LPs from 1925 through 1950, domestic and foreign, using original company file data. As you’d expect with anything Michael does, the level of detail and quality of research and editing are first-rate.
The search engine offers numerous search fields and returns pinpoint results. The screen-shot below shows the first two of 165 entries returned for Feodor Chaliapin (in this case, sorted alphabetically by composer):
Like CHARM and UC-Santa Barbara’s Discography of American Historical Recordings (DAHR), this is a completely free service, with no registration or log-in required.