Sony PCG-R505EC - Manual (Page 189)

Using Your Recovery CDs
117
After recovering your system using the System Recovery CD(s), you may be
prompted to insert your Application Recovery CD(s) after restarting Windows.
Insert the Application Recovery CD to automatically complete recovery of your
system.
✍
Your system may include one or more System Recovery CDs. If you have more than
one System Recovery CDs, insert the first CD to run the System Recovery program.
You are prompted to insert the second CD once the information from the first CD has
been installed.
The recovery process takes from 30 to 60 minutes to complete.