: Use the DNxHR codec (High Resolution) instead of DNxHD, which is limited to 1080p.
: Compressed formats like H.264 (MP4) force your CPU to work harder. DNxHD is an "intermediate" codec that is easier for VEGAS to process while scrubbing the timeline. Avid Codec For Sony Vegas
: It is the primary format used by professional Avid Media Composer editors and broadcast houses. 🚀 Handling 4K and High Frame Rates : Use the DNxHR codec (High Resolution) instead
: Get the free Avid QuickTime Codecs LE pack from the official Avid site. Avid Codec For Sony Vegas