database won't build

[marschall]

Hey
i dont know if that has been discussed before ( cant find something about it).
i'm using a sansa clip with the newest rockbox version. a few days ago, the database started to build just a few songs, for example only about 1000 of my 5300 songs. After an hour or so, things would be normal again ( without me doing anything). Now, the database doesnt even build at all. it stuck at song 0 , no matter how long i wait. Im still able to reach my file per " file" option, but the database isn't working. I did an update,  re-setup, even formated my player. nothing helped.
Any idea how to fix this?
thank you

[saratoga]

Usually this means that either the file system is corrupted, or that there are corrupted files that are crashing the parser.  I would start by checking the file system for errors on your PC. 

[marschall]

thank you for the answer

how do i do this?