Thread:TheChibiKing/@comment-24264457-20180921130523/@comment-29512888-20180921131838

Fanmade extracts are the ones with the whole green/blue/etc. screen around the dancer (example), because real ones have a small square with the dancer and the coloured screen at the top and the white mask at the bottom (like a reflection on water) (example). The only exceptions are JD1/2/Wii extractions, which have a black screen around the dancers, because chroma key didn't exist at the time.

There are some rotobrushes structured like extractions, but it's usually easy to tell they're actually fake because the outline is more uneven.