where is disk check data stored?

I was wondering if there is a chip or something in a HDD that keeps track of damaged sectors? my xbox 360 has had files go bad and I was thinking if I connected it to my computer and did a disk check (after backing it up with xport360) that I could keep it from getting worse by marking the bad sectors. would this work or would the sector information just be overwritten when I restore the HDD from the backup?

Hi CHansohn -
This is for my XP - I do not know what OS you have, but try this first -
A log of the disk check is recorded (only if the scheduled re-start is used).
To open Event Viewer and view the log:

Go to Start > Run > and type eventvwr and press the <ENTER> key.

In the left pane, click on Application.

In the right pane, at the top, click on the column heading Source to sort the list alphabetically.

Look in the Source column for "Winlogon", with an entry corresponding to the date and time of the disk check.

Double-click on that entry to view the log.

Thank You -

Click on the "copy" button to copy the log to the clipboard.