Read also this FAQ: https://www.vegascreativesoftware.info/us/forum/faq-how-can-i-make-my-video-preview-play-smoothly-in-vegas-pro--104624/

Much of it also applies to VMSP.

Thank you Eric and vkmast for responding. You two were very helpful. This is what I found out through researching your links and the internet. The problem with choppy video playback and therefore creating a smooth video is resampling. In Vegas Pro you can add a script to "disable resampling." See this link for a youtube video on how to easily do that. This is an excellent video that contains the script for Vegas Pro 16. Remember this is for Vegas Pro 16 only. In Movie Studio 16 Platinum, the version I am using, you cannot add scripts to the program. (When you go into your program files for Movie Studio 16, you will not find a folder for scripts. Also let me add, when you click on the tool bar you will not find a "script" option. But you can turn off resampling in Movie Studio 16 Platinum.

1. Right click on each video clip,

2. Choose "Switches."

3. Click on Disable resample.

It works. What a difference in my video. I know this is a bit of time but it's so worth it and easy to do. Viola! No more choppy, jerky video in preview or playback.

I hope this helps others. I hope it saves time and frustration.

Here is the source of my information.

5. Which versions of VEGAS support scripting?

Scripting is supported in all versions of VEGAS Pro. Scripting is not supported in any version of VEGAS Movie Studio.

https://www.vegascreativesoftware.info/us/forum/vegas-pro-scripting-faqs-resources--104563/

1. Right click on each video clip,

Yess but maybe it is going faster to first select all needed video events or if all

1. select the first one and choose through rightclick "select all" and
2. on the first one do your point 2 and 3.

@schanuzer1 As you say "Scripting is supported in all versions of VEGAS Pro. Scripting is not supported in any version of VEGAS Movie Studio." Since VMS is a consumer programme this is not surprising. I'm not aware of any consumer level video editor that has scripting. If you want scripting you will need to move up to Vegas Pro.

VASST FasstApps are about the only script-like extensions that work also in Vegas Movie Studio Platinum. I have several updated versions of those and they show also in my VMS 16 Platinum.

Thank you EricNZ for your advice. Very helpful to know.

vkmast - This is good information to know, about your script-like extensions and how they will work in Movie Studio Platinum. Which extension will help me with my disable resampling issue?

And just so everyone who follows this post understands, selecting all my clips and then clicking on "switches" and then clicking on disable resample, worked just fine. Nice and smooth.

And since I am a little experienced to video editing in MSP, should I move up to Pro? It's expensive. And I don't know if it's worth it for my usage. I am getting more into video. I just bought a Sony A7SII camera. And I want to focus on video, not still photography. I make videos of my travels, social events, and live music.

Property Assistant has a related feature but in this case what @j-v advised actually does it as well as you need to select the events first anyway.

@schanuzer1 As you probably are aware VMS is a cut down version of Vegas Pro. For what you are doing VMS is probably adequate. But if later you find there are features of VP that you need your VMS "vf" project files should open in VP (but not vice versa) so moving up and continuing with your projects would be easy. As the programmes are similar the learning curve should be easy should you move to Pro.