Using 24P Video Formats
Both SD and HD projects can use assets encoded at 24 fps, as long as they are encoded
specifically with NTSC or PAL flags set.
Note: For NTSC, 24 fps is actually 23.976 fps, although it is most often referred to as
Video at 24 fps has two main advantages: it matches the film frame rate, and, in the case
of NTSC, provides much smaller files due to having six fewer frames per second.
Importing 24 fps Assets
for more information.