Within a few years, cassettes were outselling vinyl records, and would continue to do so until the compact disc (CD) overtook cassette sales in 1991. In German-speaking countries, the use of "Walkman" became generic, meaning a personal stereo of any make, to a degree that the Austrian Supreme Court of Justice ruled in 2002 that Sony could not prevent others from using the term "Walkman" to describe similar goods. It is therefore an example of what marketing experts call the "genericide" of a brand. A large statue of a Sports Walkman FM was erected in Tokyo's Ginza district in 2019 in celebration of the 40th anniversary. Other Walkman In 1989, Sony released portable Video8 recorders marketed as Video Walkman, extending the brand name. In 1990 Sony released portable Digital Audio Tape (DAT) players marketed as DAT Walkman. It was extended further in 1992 for MiniDisc players with the MD Walkman brand. From 1997, Sony's Discman range of portable compact disc (CD) players started to rebrand as CD Walkman. In 2000, the Walkman brand (the entire range) was unified, and a new small icon, "W.", was made for the branding. Digital players (1999–present) On December 21, 1999, Sony launched its first digital audio players (DAP), under the name Network Walkman (alongside players developed by the VAIO division). The first player, which used Memory Stick storage medium, was branded as MS Walkman, shortly before the Walkman brand unification. Most future models would use built-in solid-state flash memory, although hard disk based players were also released from 2004 to 2007. They came with OpenMG copyright protection and, until 2004, exclusively supported Sony's in-house ATRAC format; there was no support for industry-standard MP3 as Sony wanted to protect its records division, Sony BMG, from piracy. Additionally, Walkman-branded mobile phones were also made by the Sony Ericsson joint venture. Sony could not, however, repeat the success of the cassette player in the 21st century digital audio player (DAP) market. Rival Apple's iPod range became a large success in the market, hindering Walkman sales internationally, though it fared better domestically. The Network Walkman for several years had paltry market share and had also been struggling against numerous other rivals such as Creative, Rio, Mpio and iRiver, although sales and share did eventually increase fivefold in 2005 and continued improving, but still remained small. Its pricing policy, SonicStage software and lack of MP3 support in earlier years