HandBrake is free software available for Mac and PC that can assist in the circumvention of professional copyright protection measures on published media. Before proceeding with this tutorial or any other act which proposes to circumvent any copyright protection measures it is a good idea to take a look at the DMCA (Digital Millennium Copyright Act) and the "anti-circumvention exemptions" it provides. If the purpose of your actions is not found in the DMCA it may be that what you are attempting is illegal; tread carefully here.
This tutorial can assist you in using HandBrake to rip legally-defined clips from various media for educational or critical purposes:
Please note that Media Services staff CANNOT assist you in any act which attempts to break copyright measures.