How to Play Any Video File on Your Xbox 360 with Your Mac
It is easy to play DVD on Xbox 360 with Mac. When Xbox 360 was plugged into a Mac PC, the drive was detected instantly and even directed the DVD player in the OS to play the DVD movie. This is a step by step tutorial on how to play any video file on your Xbox 360 from your Apple Mac computer.
There are three steps:
Step 3. Play Video File on Xbox 360:
First, on your Mac, open up your new file in VLC and in Quicktime. Make sure it can play in both (Not necessarily at the same time). If you have done that, now it is time to move to your 360. Follow these instructions:1. Tun on your Xbox 360

2. Navigate over to the "Media Tab", and select the "Videos" option.

3. IMPORTANT! Since the Xbox 360 Dashboard update of about 6 months ago, once you click on"Videos" it will just show you all of the videos on your Xbox 360 hard drive. So press "X" to change the current source. Then browse down to your Apple / Mac computer. Mine is an iMac.
4. Click on the "Movies Folder". That is where you should have saved the file there earlier.

5. Now browse through your video files and select your sweet, newly converted video file, and play it!

6. Watch and Enjoy! Nothing like watching the TMNT trailer in all of its Hi-Definition glory!
7. You're Done! You did it! Now you can follow that same process when watching any video on your Xbox 360 from your Mac.