High Quality Content by WIKIPEDIA articles! Tandy Memorex Visual Information System (VIS) was an interactive, multimedia CD-ROM player produced by the Tandy Corporation starting in 1992. It was similar in function to the Philips CD-i and Commodore CDTV systems (particularly the CDTV, since both the VIS and CDTV were adaptations of existing computer platforms and operating systems to the set-top-box form-factor). The VIS systems were sold only at Radio Shack, under the Memorex brand, both of which Tandy owned at the time.