I have a bunch of 5.25" floppies from the late 80s (Apple II software) and lots of 3.5" floppies from the early 90s, and a few weeks ago they all seemed to work

I have a bunch of 5.25" floppies from the late 80s (Apple II software) and lots of 3.5" floppies from the early 90s, and a few weeks ago they all seemed to work perfectly fine. BTW old 3.5" floppies (early 90s) are much, much more reliable then more recent ones. In fact, the latest floppies I bought (2002-2005 or so) are utter crap, and most of them are unusable, and were almost from the start.