You can read the descriptions which should appear in the dialog from the source:
http://code.google.com/r/neobrainx-dolphin/source/browse/Source/Core/DolphinWX/Src/VideoConfigDiag.cpp#71
http://code.google.com/r/neobrainx-dolphin/source/browse/Source/Core/DolphinWX/Src/VideoConfigDiag.cpp#71
