System recovery disc doesn't work

[clinger]

I am trying to restore my sony vaio pcv-rx470ds back to its original ME OS..I had XP on but now when I try and use the system recovery disk it formats drive c then restarts but then it says it cannot recogonize drive d and wants to format both drives again and restore the partition and I accept that but then it seems to freeze or just stop thinking...I left it for about 1 1/2 hrs in this state hoping to come back amd find it past this point but I was wrong..Any ideas?

Message i just got..

Warningrive D not found

Drive D is not accessible
Some software apps may not work properly when D is not accessible

Type Y to Delete all partitions and create C & D drives

Type N to continue the restore process withoiut creating a D Drive

So I select N and it seems to continue on its merry way until about 8-9% then it say to remove any discs, process is terminated.
Now when I turn cpu on i get..

Ivalid System Disk
Replace the disk, and press any key
Any Ideas?

Umm now I get Disk boot failure, insert system disk and press enter

[winsong]

What was on this system XP or 98?

Why are you trying to install 98 on a XP system

XP uses the HTFS hard drive format - 98 cannot see the drive

You will need to run FDisk if you want to put 98 on this system.

Was this system shipped with 98 or XP

[clinger]

Well actually i posted in the wrong area it came with ME then i installed the XP upgrade....then when cpu started to lag i decided to start from scratch again and thats when the trouble started....now I get a message...Disk Boot Failure, insert system disk and press enter...I have the original system recovery disks from sony I have the XP uprgrade as well but nothing seems to work.