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
23.98 fps
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.
See
Importing 24 fps Assets
for more information.