Sony Corp.'s co-founder Akio Morita is shown in a 1989 video, speaking to the company employees when the Walkman marked its 10th anniversary, at a special display that opens Wednesday, July 1, 2009, commemorating the handy music player's 30th anniversary at Sony Archive building in Tokyo, Japan. When the Sony Walkman went on sale 30 years ago, it was shown off by a skateboarder to illustrate how the portable cassette-tape player delivered music on-the-go _ a totally innovative idea back in 1979. Today, Sony is struggling to reinvent itself and win back its reputation as a pioneer of razzle-dazzle gadgetry once exemplified in the Walkman, which had its 30th anniversary marked Wednesday.