Ron:
Yes, it is a Hitachi drive.
To make a drive ready for the S2 (the drive from MuVo) you need:
1. Remove all partions (used by MuVO) and then create ONE new partition. Use a demo software found at:
http://www.7tools.de
2. Format the drive using Windows XP, selecting FAT, make sure you do not select FAT 32. FAT, in XP, selects FAT 16 with 64 KB clusters.
When you use you new drive in the camera, the camera will display 22 2 or 19 2 and it will never change. I use 4256x2840 JPG for about 900 pictures or RAW for about 300.
Louis