It sounds like you might be looking for a specific music blog or a site that hosts MP3 collections, but that phrase is a bit broad!
Add Visuals: Include album art or a screenshot of the file sizes to show the VBR advantage. vbr mp3 collection blogspot free link
When a Blogspot blog labels a post "VBR MP3 Collection," it signals that the uploader knew what they were doing—they weren't just bulk-converting YouTube rips. It sounds like you might be looking for
VBR stands for Variable Bit Rate. Unlike standard Constant Bit Rate (CBR) files that use the same amount of data for every second of a song, VBR is "intelligent". VBR is "intelligent".