This issue has affected burning activities outside the Finder: Toast users appear to have the same problem.

UserEric Hoggwrites:

“I’m having the same issue.

Upgraded to OS 10.5.2 with my 20” Intel Core Duo iMac and I cannot burn discs.

Toast users will generally get an error stating: “Mismatch at byte 0/sector 0.

Fixes

Delete the Finder preferences fileThis disk verification error has been attributed to a corrupt Finder preferences file.

Removing this file should reset the problem and resume normal disk verification.