thanks for your answer. Just a couple of questions more
1. As I understood, in HDPr10 there is no any file managers, like the ES File Explorer in DX100?
2. Is it possible to install the ES File Explorer? There is no GooglePlay, but perhaps if to load the es_file_explorer_v184.108.40.206.apk inside the HDPr10 (through USB or via microSD) one can activate it and install? Is it possible somehow to see the non-music files from the player interface?