Audiovisual introductions in 1997

Auto-Tune is audio processor software released on September 19, 1997, by the American company Antares Audio Technologies. It uses a proprietary device to measure and correct pitch in music. It operates on different principles from the vocoder or talk box and produces different results. Auto-Tune can be used in both post-production music mixing and in real-time live performances.

thumb|Logo of Compact Disc-ReWritable (CD-RW). thumb|CD-RW with distinctively darker data surface than a CD-R and a factory-pressed [[CD-ROM.]]

family of standards defined for mounting flat panel displays

file format family based on the Microsoft Wave file format

DIVX (Digital Video Express) is a discontinued digital video format. Created in part by Circuit City, it was an unsuccessful attempt to create an alternative to video rental in the United States by the mid–late 1990s. The format's poor reception from consumers resulted in major financial losses for Circuit City and is credited with being part of the company's downfall.

right VideoGuard (sometimes referred to simply as NDS), produced by NDS, is a digital encryption system for use with conditional access television broadcasting. It is used on digital satellite television systems – some of which are operated by News Corporation, which owned about half (49%) of NDS until its sale to Cisco in 2012 (becoming Cisco Videoscape division). Since 2018 VideoGuard is improved and maintained by Synamedia (Cisco's spun-off company based on its former Videoscape division). Its two most widely used implementations are Sky in the United Kingdom and Ireland and DirecTV in the