I can't say for sure what is happening with your drive. Is the Vaio care recovery tool on the hard drive or on a DVD? It sounds like your hard drive has a seek problem or media problem, so it is trying to either read, write, or seek to a specific location (where DISM.EXE is located) but the drive doesn't respond. For what it's worth, DISM is the Microsoft tool for creating or applying an image to a hard drive.
Here is a link to the Toshiba utility for checking your hard drive:
http://storage.toshiba.com/techdocs/fjdt_700.zip
I suspect it won't be able to resolve your issue. You will probably need to purchase a new hard drive, and if your Vaio Care recovery tool is on the hard drive, you may need to contact Sony to get a set of DVDs to reload your computer (assuming you don't already have one.)
--Russel