CD burning programs are converting your .MP3s back to 16/44.1 before burning. You should not be working with compressed files at all if you're burning to CD; use your .WAV files.

As for the MP3 files, what bit rate are you using?


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.