A music fan, Aadam Jacobs, has been recording concerts since the 1980s and has amassed over 10,000 tapes, which are now being digitized by the Internet Archive. About 2,500 of these recordings have been posted online, including rare performances by artists like Nirvana and Sonic Youth. The recordings were made using mediocre equipment, but volunteer audio engineers have improved their sound quality. The collection is a valuable resource for music fans and preservationists.