Media Storage and Primary Temp advice

Anything at all that you open in Waveform view is actually opened as a temp file. And any work that you do on it is saved as a series of 'undos', so the larger the file, and the more undos you use, the sooner the temp file gets to the folder limit (imposed by the HD size as a rule). It's only when you do a final 'save' that the original file gets updated.

As for whether you should save audio on an external drive, the answer is clearly 'yes', if you can, as it's more important than the video. How so, you might ask? Well, without the audio, the pictures don't mean very much as a rule, but without the pictures, you generally have a perfectly good radio programme...

Should the temp file be on the same drive? No, not if you can help it. Ideally, temp files should have a drive of their own. I have a SSD for this, and I regard it as sacrificial, as it's going to get a lot of writes, and that's the one thing that will eventually knacker them. ANd that applies to a degree to any drive. So, you only keep things that don't matter on a temp drive, and the very last thing you do with it is put stuff you actually care about.

So the general answer to your questions is that it's best to keep anything you care about outside the computer, and temp files isolated from everything else. Your main drive should contain nothing other than object code and the OS, in an ideal world.