My offline recordings are suddenly failing with the error: "No suitable decoder module"

Hardware: MBP Retina

Software: OSX 10.9.2 Chrome 34.0.1847.116 (up-to-date)

I have made 12 offline recordings in the past with no trouble. Suddenly, this week, the recording process has stopped working. I have read every article I can find on this issue including the ones on resizing that might potentially explain this. I am not doing any resizing during the recording process.

Here are the new symptoms:

(1) When I start the recording process, there are long loading delays. Both right after I click "make flv" to start the process, and also after I dismiss the screensize warning dialog, there is a 30-second to 1-minute delay where nothing happens.

(2) After the video plays back (which works just fine) the file that is created will not open in VLC, nor can it be interpreted by youtube. The VLC error I get is: "No suitable decoder module."

https://www.dropbox.com/s/tzqrbeuphysnipm/Screenshot%202014-04-24%2009.44.31.png

Any ideas?

Thanks in advance for your help.

--

Tom Rose

p.s. I have idea where the response to this post is going to go, so I'm not sure how I'll get the answer. There is no place to leave contact information.