DXGI_FORMAT_R16_* & DXGI_FORMAT_R8_*

Hi,

I remember sometime before the minimum per pixel size is 32bits and DXGI_FORMAT_R16* & DXGI_FORMAT_R8_* actually gets padded to 32bits internally. Is that still true? Or do DXGI_FORMAT_R16* and DXGI_FORMAT_R8* actually take 16bits and 8bits per pixel now?

Thanks