Use of CD-ROM and bar code technologies is extremely beneficial for cases in which a multitude of documents are expected to be presented to the jury. 19 CD-ROM and bar code technologies allow a trial lawyer to instantly locate and display his or her exhibits to the jury. During the trial, an individual exhibit can be quickly retrieved, shown to the jury, and replayed at any time. Use of CD-ROM and bar code technologies may not be beneficial for cases with only a few documents, but with cases in which lawyers have trouble keeping up with all the exhibits, they might prove to be advantageous. Scientific animation is significantly different from demonstrative animation.
Scientific animation is more mathematically accurate.
The motion in scientific animations more closely follows the laws of physics. Accordingly, it can be costly to show the animation's validity so it will be admitted at trial. Juries are greatly influenced by animation. For these reasons, however, some judges have refused to allow video animation in the courtroom. Until technological improvements make it more affordable, sophisticated computer animation is more likely to be used as a tool of prosperous defendants or by government prosecutors with novel or high-profile cases.