When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
YouTube would be the best place to post videos as that's their main service. We provide the ability to upload content but videos/movies that have any length are a different media. If you need help using YouTube, please see YouTube's extensive community help for basic instructions.
After you've uploaded the video, all you do is copy the URL of the YouTube video then paste that URL inside the message area.
Get the video onto YouTube. Is this done already? If not, that's the first step. For help doing that, you will need to consult with YouTube's Help and Community.
Once the video is on YouTube, you load the video in your browser then copy the URL (address link - located in the browser's address bar) and paste it within a message here. Or use the Share button on YouTube, which copies the URL so that you can paste it.
You'll need to spend a little more time and work into doing this, as this is not something that we can do for you. YouTube is where most videos are uploaded/hosted online, so this is not specific to CorvetteForum. Most sites like CorvetteForum do not have the means to host videos, which is largely why YouTube is used.
For clarification, you don't use the Manage Attachments button nor the Upload button here when attempting to share it. You simply paste the URL inside this message area. It's just like sharing a link.
1. If you've already got a YouTube account and the video is uploaded to YouTube, then you simply copy the URL and paste it in the message. You wouldn't get any "invalid" messages from CorvetteForum from simply copy/paste a link within a post. So you're doing something different if you are.
2. If you've already got a YouTube account but don't have the video uploaded to YouTube, then you need to use YouTube's support for help in using their services.