Is there a reason to render at less than best these days?

From the help:

Choose a setting from the drop-down list to set the quality of the rendered video.

Unless you have specific performance problems, choose Good. Choosing Best can dramatically increase rendering times.

Good uses bilinear scaling without integration, while Best uses bicubic scaling with integration. If you're using high-resolution stills (or video) that will be scaled down to the final output size, choosing Best can prevent artifacts.

TIP Some file formats allow you to associate a video rendering quality setting with a custom rendering template. Final rendering template settings override the Full-resolution rendering quality setting in the Project Properties dialog. For more information, see Custom rendering templates

In summary: If the render format does not include the option to choose, it will use the properties setting. If you choose something else in the render dialog, that's what will be used instead.

Okay, thanks.

For I forgot to change properties setting into Best. And then I was wondering if I should cancel the Rendering proces. But I thought let me ask first what is going to happen. So I have left it rendering for five hours and now it looks like Best [very good]. Thanks again!

Is there a reason to render at less than best these days?

No, but now you know why I asked.

Is there a reason to render at less than best these days?

As long you do not rescale there is no difference between good or best. Probably that's the reason that default setting is good. But when it makes you feel you're on the safe side, set it to best.

If you click on the '?' at the top R corner of the Project Properties window, it will take you to a webpage providing details about the options in Project Properties and, under 'Full resolution rendering quality', provides a basic explanation about the settings. It also provides a link to the custom settings in render templates.

Hopefully the info in those pages may help.

@RogerS - from what I posted above:

Unless you have specific performance problems, choose Good. Choosing Best can dramatically increase rendering times.

Good uses bilinear scaling without integration, while Best uses bicubic scaling with integration. If you're using high-resolution stills (or video) that will be scaled down to the final output size, choosing Best can prevent artifacts.

In other words, "Good" is fine most of the time unless you're using high-res images and zooming in on them. I'm sure "Good" is also faster than "Best" so, yes, there are reasons to use Good instead of Best.

@Dexcon, I actually did that and the help did not open. I manually opened the help system and searched to the File - Properties section.