Problem with Resource Fork

I am having trouble with creating an experiment package (zip) because there is an error with the resource forks. What does the attached error message mean and how do I fix it?
For all the videos in all my stimulus lists I am getting this message.

The message reads:
Experiment Package Error while adding file “/Users/student/Desktop/Identity Experiement/stimuli/oval identity videos/both genders/average female to 001 .mov”.

The file has a Mac OS resource fork, but SuperLab could not add the fork to the archive.

Can you post or email me the one of the movie files without compressing them?

A resource fork is a feature that is very specific to the Mac operating system.