Video recording a deposition not only captures the testimony of a witness, it also captures the demeanour of the witness.
Video also captures the attention of the audience in a way that reading from a transcript simply doesn’t. While transcripts are necessary, video is more compelling because it shows body language, tone of voice, reactions to questions, etc.
Video depositions can also substitute for live testimony, especially for expert witnesses who may typically be unable to be present in court. If an expert witness is asked to testify live, the costs can be prohibitive to most clients. An alternative is to record a video deposition of the expert witness and play it in place of their live testimony in court.
Video depositions can also be used in cases where witnesses are in poor health and may not be able to testify in person.