I’ll assume that the PC you


I'll assume that the PC you're using is not a dedicated video editing machine, so you'll need to find out what else could be eating up the CPU cycles. When playback stops and starts, in my experience, that's a sign that something else is running that is demanding the CPU's attention.


When editing video, it would be a good idea to shut down as many other programs as you can. Anything running in the system tray such as Skype, or any IM app, that goes onto the internet should be shut down until you need it. 


Open up Windows Task Manager and take a look at the processes that are running. Sort them by the amount of memory being used and that may lead you to the culprit or culprits.


You didn't mention your operating system. If you're running Windows 7, 64 bit version, then 16 GB of RAM is fine, but if by chance it's a 32 bit version, anything over 3 GB of memory can cause problems such as this.


If you do find out what's going on, please post any successful fix. That may help someone else in the future. Good luck!

Best Products

Hand-held Stabilizers Buyer's Guide

Best camera stabilizers for video — 2020

A camera stabilizer lets you capture smooth shots without sacrificing freedom of movement. Here’s a look at the best handheld stabilizers available today.