If the file s that much large tehn you have a log full of error messages non stop.
Do a clean log of at least 30 seconds doing all you normally do and then upload it, copy the link to post it here and take a look at the analizer.
Edit
Just took a look at the pastebin you posted. The problem start with the MiraBox
18:15:53.390: [DShow Device: 'Video Capture Device'] settings updated:
18:15:53.390: video device: MiraBox Capture
18:15:53.390: video path: \\?\usb#vid_534d&pid_2109&mi_00#7&2e48d0e4&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global
18:15:53.390: resolution: 1920x1080
18:15:53.390: flip: 0
18:15:53.390: fps: 60.00 (interval: 166666)
18:15:53.390: format: MJPEG
18:15:53.390: buffering: disabled
18:15:53.516: warning: Found EOI before any SOF, ignoring
18:15:53.516: fatal: No JPEG data found in image
18:15:53.516: Error decoding video
Thats my Capture card for my camera, so its not something that can be completely replaced at the moment.