Video Different Length than its Audio File?

Hey

has anyone noticed when you drag a video in (or several simultaneously) that sometimes the video and audio are sometimes not only different lengths, but sometimes start subframes (to even almost a whole frame) off?

I tend to have lots of guide track sync issues almost every time I drag in multiple videos simultaneously. I have since switched to dragging in one at a time and since the video and audio are no longer importing head to tail with the other videos, their start times aren’t forced out of sync with one another.

It all stems from the lengths of the audio and video being different.

Is this just a result of exporting from certain programs or is this something that just happens?

The following may help: