Day 10: Closed Captioning

This post originally appeared on the Software Carpentry website.

Our latest screencast, on NULL values in SQL, is now online. [Original link no longer active; more recent screencast on NULL values.] Unlike its predecessors, this one has closed captions (as well as a transcript in the enclosing page). Please let us know what you think: are the captions helpful, or do you find them distracting?