In the internet era, a live music fan has to contend with an array of unreliable resources to get his or her fix: bandwidth-hogging torrents, sketchy file-sharing sites, low-bitrate mp3s, and fuzzy YouTube rips. For years, however, the Internet Archive has provided something of an online oasis.The nonprofit organization hosts thousands of hours of free, legal, and decidedly un-sketchy streams and downloads of old concerts and radio sessions, all offered with the permission of the artists. Of course, there’s a lot of garbage–gaze into the terrifying abyss that is 400+ Jason Mraz live tapes! But there are also untold treasures, invaluable documents, and just plain awesome listens. Here are few vintage essentials.