Toshiba takes DVD-R media vendors to court

Several manufacturers of blank DVD media have found themselves under attack by Toshiba, who is irritated over alleged patent infringement. Toshiba has decided to take Imation along with seven other companies to court, claiming that they do not have license agreements with Toshiba or the DVD6C Licensing Group covering recordable DVD media, and have engaged in the import and sale of said media without permission. The company is seeking both monetary compensation for past infringement and injunctions against the offenders.

What's Toshiba's goal here? Assuming there is a legitimate complaint about patent infringement, why would Toshiba wait until 2009 to take action? It seems strange, but there have been bigger lawsuits for less. Still, I see difficulty in Toshiba getting their goals accomplished in this particular case.