High-definition encode (likely h264/AAC) typical of the group's BD releases ( GitHub Gist ).
📺 Release Overview: [Kira-Fansub] Oreimo Animated Commentary [Kira-Fansub]_Ore_no_Imouto_-_Animated_Commenta...
Fansubs usually include styled fonts and typesetting to match the aesthetic of the "animated" interface. [Kira-Fansub]_Ore_no_Imouto_-_Animated_Commenta...