If you have a Windows PC, here's what to do.
Right click on the image, and go to "open with", and choose "Paint"
Within Paint, go to the upper toolbar and click "resize". It goes by percent, so maybe start with inputting "50" in the resize option.
Then, click the "save" icon on the upper left.
Look at the bottom of Paint, and you should see a little thing that says the size of the file. If you dont, you can also exit Paint, find your image again, right click on it, and click "properties", and you'll see the file size.
Keep resizing until you get the image below 600MB.
Alternatively, you can just email them to me and I can change the size and post!
(daveleblanc@clarinetpages.net)