Up to 5.1 channels of audio produce incredibly realistic digital surround sound. And multiple languages on the same disc are no problem. Program Archiving . The life expectancy of videotape has been determined to be about 14 years, after which varying degrees of degradation can occur. DVD is a digital format.
Video is encoded as bit streams of ones and zeroes and permanently burned onto the disc.
DVD's are as rugged as audio CD's, and will last forever as long as they are taken care of. Corporate Training . Many of our clients have multiple tapes, each with multiple role-play vignettes, that they use in group training environments. Valuable time is spent changing and searching these tapes during training sessions. Imagine if all of the vignettes on all of the tapes were available instantly, in any order.