TerraSonde is offering its customers a new extended-warranty program for the Audio Toolbox Plus and Digital Audio Toolbox products. Extended Warranty extends the standard warranty from one to four years. Free factory recalibration also is offered during that time. Deluxe Extended Warranty extends the standard warranty to five years; users also are covered for any damage done to the Toolbox during that time. This option also extends the free Software Upgrade Policy to five years. Costs of extended warranties range from $185 to $625 depending on product and term. Info: www.terrasonde.com.