Can SD and HD (or Different HD Formats) be Mixed in the Same Timeline?
VelocityHD lets you mix HD and SD in the timeline, as well as mixing different HD formats. An output format (HD or SD) must be chosen for the timeline. VelocityHD provides real-time preview playback of segments with mixed frame sizes and rates (e.g. mixing HD and SD, 720p and 1080i, or PAL and NTSC in the same timeline). These previews are dependent on the host workstation CPU and will usually not be at full quality or frame rate, so must be rendered for final output.