Error code -36 when using a USB flash memory or hard disk (Mac OSX Leopard)

I have been experiencing problems when copying files from an iMac with Leopard 10.6.2.

Each time I tried to move a folder from the local drive to the flash drive or an external hard drive I received the "Error code -36".

It is a bug.

And I found a blog post with the solution. Just click here. Or follow the instructions as explained on that Blog:

"

1. Launch Terminal (Applications > Utilities) and type the following command, making sure to include a space at the end:

2. dot_clean

3. Select the folder on your Mac that is giving you trouble and drag it right to the Terminal window. A green cursor with a + symbol should appear before you release the mouse.
4. The path to that folder should have automatically appeared at the end of the Terminal command. For example, it might look like:
   

   dot_clean /Users/UserName/Desktop/Test_Folder

5. Press Enter/Return to run the command. It will appear as if nothing happened, but try copying that folder to a MS-DOS volume now. Finder should magically allow it to be moved with no problem!
6. Repeat the entire process as needed for other folders that won’t copy. "