[MartianMambo]

Thanks for the quick reply. The video plays just fine in VLC. The method of failure is using Flash Media Server VOD app to do RTMP streaming using Strobe player. The videos don't always fail in the same point. If I seek past a place where it seems to fail, it will fail at another point.

Strangely, using Adobe's FLVCheck tool shows the following:
12-12-17 07:44:33 Error: -108 Invalid video codec. test_md_fixed.flv

VLC shows the video codec as:
H264 - MPEG-4 AVC (part 10) (avc1)

This seems to be the same codec as other videos with no issues.

As for the metadata, because these videos were created using Wowza's DVR app, maybe they are marked as "live" and therefore the script is not adding the metadata? Strobe media player has no way of calculating duration without the metadata. In any case, using yamdi to inject is no big deal.