SupConverter is a versatile tool very easy to use, can convert SRT, ASS, SSA, SST, BDN subtitles to Blu-ray SUP or BDN format with excellent effects. It supports many advanced features for text subtitle, like vertical text, right-to-left read order, extra line space, outline, shadow. It also provides four type brush: solid, hatch, linear gradient and texure. For image subtitles, you can convert them to SUP or BDN with different video size directly. With BDN output, you can import the output in the third-party authoring tools like Scenarist.