Hi! For everyone who have problems with : 10d6:1100 on linux (mp3 player)
Bus 005 Device 018: ID 10d6:1100 Actions Semiconductor Co., Ltd MPMan MP-Ki 128 MP3 Player/Recorder
(i deleted partitions, and i didn't managed to use it ... but i have the simplest solution) :)

make a : fdisk -l

identify the mp3 player ("sdc" for me)

IceBoX ~ # mkdosfs -I /dev/sdc 

mount /dev/sec /mnt/your_mount_point

cp /home/your_name/your.mp3 /mnt/your_mount_point

umount /dev/sdc

now, hear the music again and enjoy !

CoW!