When using Wirecast to play back many MP4 files, video playback will be very slow, stuttery or jumpy. This is a bug in wirecast and/or Quicktime. This happens most commonly under Windows. Playback of wmv files is generally smooth under Windows. Solution: re-encode videos used by wirecast to h.264 baseline.

Video stutters when playing back on iOS devices or desktop devices not supporting hardware acceleration. Solution: use h.264 baseline profile instead of Main.