Hi,
Just installed RockBox on my son's F40 today.... The install went pretty clean, until I had to get the database loaded....
It found the music files, but it stuck at like "Building Database....5400 items found...Press Left to Return" or something similiar...
I found an old thread that said the problem is likely Tagging corruption someplace in the structure....
I did the quick and painful route and just deleted the music files, which I suspect included all of the .SAT files loaded by GigaRoom Software....
I copied all the music files I wanted from my pc over USB, which by the way seemed to run at USB 2.0 Speeds which was a nice feature !! My mass copy software reported a steady 12 MB/sec speed.... Roughly 28GB took maybe 30 minutes +/-
The battery charged really strong and seemingly quickly...considering it hadn't been charged in a while...
Sound quality is excellent !!