Please describe the problem:
Assume the mount point of a PSP (Playstation Portable) is /media/disk.
When copying a track to the PSP source in Rhythmbox, the file is copied to /media/disk/PSP/MUSIC/PSP/MUSIC, when it should be copied to /media/disk/PSP/MUSIC. I tracked down the problem to two functions:

impl_get_mount_path in plugins/generic-player/rb-psp-source.c
impl_build_dest_uri in plugins/generic-player/rb-generic-player-source.c

impl_get_mount_path returns /media/disk/PSP/MUSIC, but impl_build_dest_uri assumes this is the mount point /media/disk, not the audio folder, so impl_build_dest_uri appends the audio folder again (which it gets from Hal).
I managed to fix it in 0.11.6 by changing impl_get_mount_path to return the
mount path /media/disk rather then the audio folder path. I'm not sure if this
is a bug in the psp source or in impl_build_dest_uri (although with a name like
impl_get_mount_path I would think that it should return the mount path, not the
audio folder path).

The problem still exists in svn, but I couldn't get it working there for other reasons (it seems to expect a newer version of glib than I have, was causing me to seg fault), although the fix for the incorrect path is almost identical.

Steps to reproduce:
1. Mount a PSP
2. Drag a track from the library to the PSP source
3. Check the PSP audio folder, path will be something like 
/media/disk/PSP/MUSIC/PSP/MUSIC/<copied folders> instead of 
/media/disk/PSP/MUSIC/<copied folders>


Actual results:
see 3

Expected results:
see 3

Does this happen every time?
yes

Other information:
There is also a problem that the PSP only supports one level of folder depth,
but Rhythmbox copies files to <artist>/<album>/<track>, but I figured out this
isn't a Rhythmbox problem but a Hal problem. The default fdi config doesn't
set the folder_depth option like it should. Add the folder_depth option to that
file (hal/fdi/information/10freedesktop/10-usb-music-players.fdi)and it works
fine.