The scales names are in the captions beneath the movies.

C Major/Right Hand

C Major/Left Hand

C Major/Both Hands, One Octave

C Major/Both Hands, Two Octaves

G Major/Right Hand, Two Octaves

G Major/Left Hand, Two Octaves

G Major/Both Hands, Two Octaves

D Major/Left Hand, Two Octaves

D Major/Right Hand, two octaves

D Major/Two Hands, two octaves