system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What is the difference between FLAC and WAV audio files?
gpt
WAV is uncompressed, the raw data.  
  
FLAC is lossless compression, it stores the raw data more efficiency (smaller file size), think of it like a ZIP file.  
  
MP3 is lossy compression, it loses some data (high and low notes are mostly effected) in exchange for a much smaller file size.