It's very good possible this question has been asked before, but I don't feel like reading 50 pages right now
Many 3D-movies don't have any 3D-plane, so the subtitles are 'flat'. In those cases I give them a fixed depth of 8. Of course I only find out about not having any planes after ripping de BD, so I have to create those 3D-subtitles afterwards. Unfortunately all versions after 0.71 lack the option to convert subtitles to a fixed depth, so I must use that older version.
Is there a particular reason for not supporting this option anymore?