Also not a lawyer, but you should strive to document "contemporaneous notes" as substitute for a recording. A good way to do this is to document the conversation as soon as it happened, with a clear timeline, and email it to yourself.
This is one of the most important things I've learned in my career- after a meeting where any kind of requirements are decided upon, just write up a synopsis and email it to all parties and say "Here's what we decided, let me know if I got anything wrong."
99 times out of 100 it's immediately forgotten but there have been a few times when I've been really really glad to have a contemporaneous record of a meeting.
