Nero Recode unneeded components

[Grope For Luna]

I'm creating a lite version of Recode 4. Does anyone know the purpose of the following components in %ProgramFiles%/Nero/Nero9/Nero Recode/SMC:

uNeroMediaCon.dll

NeMetadata.dll

NePhotoSource.ax

and in %ProgramFiles%/Nero/Nero9/Nero Recode/PTT

NMPlaybackComponent.dll

NMThumbnailIconsGen.dll

and the templates %ProgramFiles%/Nero/Nero9/Templates ?

Every function appears to work without them but I don't have a Bluray/HD player so I can't test on those discs.