If the "hot download" urge is about saving money, remember that (the modern version) often goes on sale for less than the cost of recovering a computer infected by a bad codec pack.
If you can import MP4s but they appear distorted (e.g., a green screen), try this common fix: Go to > Video and Audio Preferences . Look for Hardware Acceleration . Change the setting from CUDA to Intel or None . If the "hot download" urge is about saving
Below is an informative guide on how to handle MPEG-4 encoding and decoding in this legacy editor. 1. Activating the MPEG-4 Codec a green screen)