A year or so ago I downloaded a song that was very difficult to find, and I was wondering why it sounded so horrible. I recently checked the bitrate and it was 64 kbps lol
I have no idea why it was that low. I used XLD to make a [320 kbps targeted] AAC file and it spat that out. It's not like 107 kbps VBR would make much of a difference for this song anyway.
Top is FLAC, bottom is 107 kbps VBR AAC.