根据文档TI-Android-JB-4.2.2-DevKit-4.1.1DeveloperGuide到如下步骤时：
Copy compiled Images to image folder and create a bootable SD card as follows.
$ mkdir image_folder
$ cp uEnv.txt image_folder
$ cp kernel/arch/arm/boot/uImage image_folder
$ cp u-boot/u-boot.img image_folder
$ cp u-boot/MLO image_folder
$ cp out/target/product/<product-name>/rootfs.tar.bz2 image_folder
$ cp Media_Clips image_folder //该条里面的Media_Clips文件在那里？
