040000 tree 974c572a5f2eba6f15cefff01555bc914d1bf4b4	linux
040000 tree b204ea07893d8ff20d6e7ea794b4bbc776e03801	media
040000 tree c835abe0b167faf9e89a7bcbd3058ae129498350	sound
040000 tree 0c380b4287e3d8c8e61bea3de48726fcd3cbcb50	video