What is what does it mean when a song is remastered?

Remastering a song involves reprocessing the original recording to improve its overall sound quality. This can include enhancements such as noise reduction, equalization, and volume adjustments. The goal of remastering is to create a cleaner, more polished version of the original recording while preserving the integrity of the original track. Remastering can improve the clarity, depth, and overall fidelity of a song, making it sound crisper and more dynamic. It is often done to prepare a song for re-release, to improve its sound for modern audio systems, or to correct any imperfections in the original recording.