A webpage put together by Video Resources has tips for location, lighting, audio, and seating at your next video deposition. In most cases, you'll probably hire someone to take care of these details for you. But will your technician mention the following tip?--
If you are planning to use the video in a courtroom, let the video company know in advance of the taping. The court reporter and the videographer can synchronize their time/date stamps, which will save a lot of extra work and expense later on, when it's time to prepare the courtroom video from the transcripts.
By the way, this seems to be just the second post in a year about video depositions. Here's my previous effort: "Controlling Abusive Counsel with Video Depositions."