OK so I was just able to reproduce the error. It *IS* definitely a problem in videoredo. It's not a problem with the master file.

I've uploaded both the original recording and the edit and the errors are introduced AFTER videoredo.

ORIGINAL: https://mega.co.nz/#!xRFXmLRD!4-wdDzBxGgOZB3zIJz4qjO22tmTgNL5D95M82CiSbs8
AFTER:https://mega.co.nz/#!kRVX3YhK!3eqneHgtAjFA7v0lkJKLkptgeoqiylo4T0oDfnmtq7A
And to see the (slight) jerkiness that I'm talking about, here's a smaller clip: https://mega.co.nz/#!xd9XhZqI!i7Jla3gWY83qmxnISZTg1z9Ucn9kHAAvOgyXYguq8Uw

And, to be clear, this has happened with various versions of VRD. It's not just one. The files that I initially noticed this on were recorded several years ago. The files I uploaded were recorded today.