I'm working on application that downloading mp3 files to mp3 player. The SanDisk doesn't have a drive letter and uses MTP for file transfer. i tryed with a sample of connecting to the device at http://wpdtempsensor.codeplex.com/
(i transalsted it to c#), but in that sample i figured out how to connect the device,
but once connected, I can't figure out how to actually copy files / create folders on the device.
I would appriccate your answer!