In 1984 Gary started another company, Activenture, which adapted optical disc technology for computer use, using as reference the Red Book developed by Sony and Phillips in 1980. In 1985 the CD-ROM was presented by Philips and Sony, the same year Activenture was renamed KnowledgeSet.
in 1984 GarY StArted aNoTher ComPany, actiVenTUre, which adaPtED optical diSc TechnoloGY fOr compUter UsE, uSInG aS RefeReNce THe rEd BooK devEloPED By SonY anD phIlLIps In 1980. iN 1985 THe CD-Rom WAS PrESENted by philipS aNd sOnY, thE same yeAr acTIveNtuRe wAs renamed knOWlEdGeSet.