Just bought Voltaic today. Tried to import 60i24p from my GH1 into Volatiac and got this message:

"Error: Unable to parse input file (file path). Please make sure the file is a valid video file.
Could not find a part of the path 'c:\windows\temp\thumbnail'."

These are .MTS files from the GH1. 1080p60i24p.
I've tried re-importing the gh1 footage onto my computer, importing directly from the GH1, clicking and dragging, same message.

Help!

GH1 24p

This is most likely due to permissions on your PC. Please change the location of the scratch directory and/or run as administrator and you should be fine.