I recently found this .pdf by the CDP Digital Audio Working Group titled “Digital Audio Best Practices”. It caught my eye because it was a great glossary of digital audio terms (perfect for my students). It turns out it also has a good discussion of archival storage of digital audio. I’ve been working on a “best practice” for my own studio (what sample rate to record new works at, how to store finished works, backups, etc) and this is another great piece of advice.