Opus is especially space-saving at lower bitrates (as you've discovered). At higher rates the difference is less spectacular, but for non-critical/casual listen

Opus is especially space-saving at lower bitrates (as you've discovered). At higher rates the difference is less spectacular, but for non-critical/casual listening (what many of us do most of the time), the space savings (for thousands of files) can be substantial. [https://wiki.hydrogenaudio.org/index.php?title=Opus#Music_encoding_quality https://wiki.hydrogenaudio.org/index.php?title=Opus#Music_en...]