Not Muti but Alceo Galliera, poor Muti was too young at the time of this recording. Regarding the reissue of Callas' recordings at EMI, one learns some interesting things by reading the booklet that comes with the latest... The previous CD editions were all made from copies of the original tapes created back in the LP days and corrected accordingly... When they were digitized for the first CD edition, they were corrected to address the issues of these already corrected analog copies: but the corrections worsened many things... The second CD edition announced as being made with a 24/96 digitization was in fact a conversion of the 16/44.1 copy that had already been corrected, so it was corrected again... hence the disaster of the two CD editions known until the 3rd and final one... For which EMI went back to the original master tapes to digitize them in 24/192 and very minimally correct...
The only way to compare 16/44.1 and 24/192 is to convert 24/192 files to 16/44.1 with DbPoweramp and compare the two... You can't do it from a platform because you never know if the 16/44.1 versions and those in 24/48, 96, or 192 come from the same master, so that the 16/44.1 is just a conversion of a file in 24 bits and a higher sampling rate.
As for me, I did it without ever hearing the slightest difference between the different resolutions.