Watch the bitrates on your video encoding, too high and your PC will probably choke trying to play it back.

As for rendering 3D scenes to jpeg, there is less wiggle room in post since it's a lossy format, not great for source material. Even for 8bit there are better options(tif comes to mind). Though I usually have Maya output to 32 bit exr and as Stwert mentioned, H.264 video is pretty safe(you can get away with lower bit rates and the resulting smaller file size yet still have good quality). I never compress anything to jpeg unless it's an image for the internet.