Though you may not notice, the slot-loader in a Macbook Pro is rather small and doesn't open like a regular cd drive. This thing is similar to the wii except for one strong difference: the wii can handle smaller (gamecube) discs...the Macbook Pro cannot.
After attempting to use many manners of credit cards and paper, the idea was given in a forum to use a business card with double-sided tape on it to remove the miniDVD from the drive. I grabbed my trusty Blockbuster card, took regular tape and looked into a circle, mashed it into the corner of the card, slid the card in, angled it slightly, and pulled out my miniDVD. Thank God for forums!