Recorded file is a little short

DVI2USB 3.0, SDI2USB 3.0 Setup, Kit, & Gear
1

The recorded file is a little short, ~0.9672 compared to the separately shot video. Do you have any clue?

I am recording a PC monitor using DVI2USB3 with Epiphan Capture Tool. The codec is x264vfw.

2

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