I tried using handbrake (on Mac) to .mp4 (normal) and only Apple TV is able to play it. My PS3 says it's not a valid file. Is there a software or function (on Handbrake) where I can do just one DVD ripping process so that single .mp4 file can play on both the PS3 and Apple TV. I tried creating a file on my WD Passport portable hard drive called "VIDEO" and putting the .mp4 ripped video and it's still no able to play it. When I rip using Handbrake into the PS3 preset mode, my PS3 plays it find but my ATV doesn't recognize it.