Search for the user VinylArchive . This contributor has single-handedly uploaded over 2,000 vinyl records ripped directly to 24-bit/96kHz FLAC.
Document: METS (Metadata Encoding and Transmission Standard) Best Practices for Audio Objects Source: Library of Congress / Digital Library Federation Summary: These guidelines (often used by IA for complex objects) recommend FLAC for "preservation masters" because it is open-source, well-documented, and supports embedded metadata. They advise against MP3 for archival due to generation loss. internet archive flac music best
Example wget:
wget "https://archive.org/download/identifier/filename.flac"