Use a dedicated Digital-to-Analog Converter to process the FLAC files.
Unlike the compressed audio found on streaming platforms, the original DVD often contains 16-bit or 24-bit Linear PCM audio.
Download the full DVD ISO or VIDEO_TS folder, extract the audio to 24/48 FLAC using DVD Audio Extractor, and listen via a DAC (Digital to Analog Converter). You have just achieved peak Cafe Tacvba fandom.