Maya.mp4 -

Use the Maya Hardware 2.0 renderer to output a sequence of frames, then compile them into an MP4 using video editing software. Quick Tips for Maya Video Workflow

MP4 files use temporal compression, which makes "scrubbing" (dragging) through the timeline laggy or inaccurate as Maya tries to calculate compressed frames. Maya.mp4

In Maya, create an and check the box for Use Image Sequence . Use the Maya Hardware 2