Problems with playing video formats through my car's usb port
I am running Rockbox. I also just installed a 16 gig memory card. I downloaded some youtube videos since I found that Zip can be used as any thumb drive for file storage. I plugged my Zip into a USB port on a car which has video playback capability. I watched the videos.
Later, I glitched my memory card. I bought a new one today, the same card as before. Now, when I plug into the car USB port I am told "unsupported format". Any idea what is my problem?