Artist's commentary
It seems she was shooting in RAW mode, so it was really chewing through the memory. :-)
On my E-10, it takes forever to store in RAW mode, so I can't take rapid photos like this. The progress of technology is awethome...
By the way, RAW is a format that saves images as-is, without data processing from the CCD or CMOS sensor. For more details, please do Google it!
Also by the way, I hear the camera Sanae-san bought is an Alpha 6000.