This is sad and enraging. Recorded seminars are deleted because storage is “not” expensive but curation and librarians who manage knowledgable data are. We are literally, digitally burning knowledge.
Imagine if the non-digital old skool classic paper had this kind of built in obsolescence?
Homer’s Iliad, William Shakespeare plays, Jane Austin ‘s pride and prejudice, the Quran, the Rigveda Samhita - never heard of these books?