22 Macworld • April 2020REVIEW
complete with optional subtitles where available
in your chosen font, colour and size. You can also
import subtitles, as well as play embedded or
external audio tracks in sync with the video.
Naturally, real-time transcoding tends to be quite
processor intensive. While QuickTime-compatible
videos (including MP4) start playing immediately
with little CPU impact, non-native formats require
buffering (referred to as ‘presegmenting media for
deployment’), which is entirely dependent upon
file size, resolution, and your Mac. A 90-minute,Transcoding can be adjusted to stream
non-native videos in original quality or a
wide range of resolutions and bit rates