Hi Bob,
"The Adobe DNG Converter, a free utility that converts files from more than 350 cameras to DNG, enables you to easily convert camera-specific raw files to a more universal DNG raw file."
You might want to check it out. I convert everything, from all three cameras to DNG. Unless you're working with Adobe stuff from prehistoric times you'll end up with more complete files with the ability to be improved with newer developments in Photoshop and Lightroom.
By the way, you're still on a roll. They're fine shots. Wish I still could drive around at night and shoot, but I've reached the point where driving at night is scary.