perhaps it just looked like it did when it was not infact? or perhaps a new update wont allow its use with such inefficient encoding types...
if it was doing direct do disk before you'd of been using a massive amount of space to store any reasonable amount of time.
Thanks Nayr; I pay close attention to my settings, so I'm almost certain I had DTD selected for some time now. I'm not one to keep much in storage, so disk space hasn't been an issue. I didn't really notice however how large those files were when DTD was working.
Two things I've done recently that I'm not smart enough to know whether or not this setting has been impacted:
1. Several weeks ago I installed the full K-Lite Codec pack.
2. A few days ago I started using MP4 rather than BVR to record videos because they're much smoother despite the drawbacks (I've tried both formats with DTD and re-encoding).
What's interesting is that although no clips are generated during motion, a thumbnail is created in the Alerts category of the clips window--in fact there's a length and size description (06sec (17K) for the thumbnail, but it doesn't play when double-clicked. It simply opens a window to a captured image.