Originally Posted by ChickenMan

Subtitle Workshop (http://www.urusoft.net/download.php?lang=1&id=sw) can convert Text Subs to graphical subs, but does not suport the Vobsub (ixd+sub) your after. But then Vobsub (subresync) can convert many Graphical into its own format, so you should be able to find a solution.