Back at school (many years ago
) the computer lab had a poster with dozens of acronyms on it and the caption read 'The nice thing about standards is...there are so many of them'.
For the last several years I have been working on various software standards (mostly Web Services related). Nothing has changed. We start with one standard, find issues with it and propose changes. That starts a whole new round of discussions and sometimes the result is an entirely new 'standard'. We then try to get backing for that standard. Some companies decide to adopt the new standard while others stick with the current version.
It is no different with HD-DVD vs Blue-Ray. Sony wants the market to adopt their 'standard' because they perceive it to be better than the alternative. Some companies agree and back Blue-Ray; others disagree and back HD-DVD. In the end, the market decides...