1. It MAY keep track of your HDD, but I'm not entirely sure. I have not been able to try a different one yet.
2. The SD card isn't even required to run Devolution, I run it from my hard drive
with no SD card inserted.
3. It couldn't keep track of the Wii because when I verify a game with all my Wiimotes connected, and then go over to my Wii U, and run it, it still works (using the same Wiimotes). That would be considered a different Wii through the system files, considering the serial number and other files don't match.
As of now, I've determined that the only things in the .dvv file are the:
1. GAME ID (first 6 hex digits)
2. Wiimote IDs (just not sure what these IDs are from)
3. Some other form of identification from the same (This is to match with the iso on the USB drive).
Again, there may be a USB HDD identifier hidden in there, maybe with partition table information, but I'll attempt loading it from an SD card to see if it loads.
*keep in mind I verified from the HDD with NO SD CARD, so if it loads from SD, that means there is absolutely no hard drive verification in the file