I used to have a SONY Vaio laptop which was provided with a system recovery disk.

When the 4gb hard disk died, the smallest replacement available was 10gb, but the recovery disk couldn't cope, and only treated it as 4gb. It wrote its suspend mode private partition (non-DOS) after that, in the middle of the drive. Completely screwed up the entire disk, and I was never able to use suspend after that. Lots of other things never worked properly either.