Currently, I am using the MAME CHD dump of DDR SuperNOVA 2 2007100800 version and it only shows black screen. I just can't find the direct link for raw file of that version so I downloaded the CHD dump and converted to .raw. I like using this version because it has the Dead End Groove Radar Special. I successfully run the older version from google drive but not all contents are unlocked even though it is set to "MAX".