We have found the DUO provided timestamps drift wrt to the host clock. For example, at 45Hz we capture 60 seconds of frames (2700 frames total). The elapsed time measured with QueryPerformanceCounter on windows was in the hundreds of microseconds off the 60sec mark. But the elapsed time computed from the timeStamp fied in DUOFrame was 358ms less than 60 sec.
DUO firmware/software: 126.96.36.199