When I hover over some of my mp3s, the bitrate is displayed wrong in Opus:
But in the system file properties dialog, it is correct
(also, I am pretty sure I would hear 24 kbps. It sounds more like 124kbps.)
The length is also slightly different. Is there a bug in Opus mp3 stats calculation?
Just doing the math: file_size/duration also gives >100 kbps, not that small number that Opus displays in the tooltip.