So I come up with this Avisynth script using internal Avisynth filters, Virtualdub filters (2 of them Bright.vdf 'brightness/contrast (UI-enhanced)(1.0) by Avery Lee/Donald Graft and exorcist.vdf by Christopher Wojdon), and dekafka.avsi by poptone. When I want to use my desired soft subtitle, the underneath hard coded ones annoyes me. As you know some movies have hard coded subtitles on them.