Apple Hard Drive Update
Our software library provides a free download of Apple Hard Drive Update 1.0 for Mac. The most recent installation package that can be downloaded is 1.4 MB in size. This Mac download was checked by our antivirus and was rated as safe. The software relates to System Tools.
From the developer:
MacBook Pro Hard Drive Firmware Update 2.0 reduces certain infrequent noises made by 7200-rpm drives. These drives shipped with the June 2009 MacBook Pro. To complete the firmware update process, please follow the instructions in the updater application (/Applications/Utilities/Hard Drive Update.app). The updater will launch automatically when the installation is complete. New Hard Drive firmware will be: 0007APM2.
You may want to check out more software for Mac, such as Apple Lion Recovery Update, which might be related to Apple Hard Drive Update.