ok i found the information in the manual for the PRO..
"
The Photos and Videos tab displays pictures and video files from the current
favorite album. By default, the Camera Shots album which stores the pictures and
videos that you captured using the device camera is set as the favorite. You can
change to another favorite album, if preferred.
To set an album as a Favorite
1.
On the Photos and Videos tab, touch Album to open the Album program.
2.
Touch Albums and then select one of the listed favorite albums.3. Tap Menu > Set as Favorite. and then tap OK on the confirmation screen."
"
To transfer media files from a computer and view them on the
Photos and Videos
tab, copy or synchronize them to a folder under
\My Device (the device memory)
or \Storage Card (if a microSD card is installed)."
so only the folder you choose as "favorite"
the music part is different tho.
"
The Music tab allows you to visually browse through albums and music tracks and
play music. The albums and music tracks that you see on the
Music tab are from the
Now Playing
list of the Library.
Note
Your device searches for all music files that have the following audio formats: AMRNB/
WB (.awb), MP3 (.mp3), WMA (.wma), AAC/AAC+/eAAC+ (.aac), and MPEG-4 (.m4a).
It searches for music from the following locations:
Device: \My Music (including all subfolders)
\My Documents (including all subfolders)
Storage Card: \Storage Card (including all subfolders)"