Install can't find C200(250)

[machiavelli266]

Relatively unsophisticated, but trying to install Rockbox on C250. Can't detect. Cannot figure out how to fix this.  Attempt gets "configuration invalid" Config window shows Sandisk C200 but if I click on it, nothing happens. Will not autodetect. Next screen shows C drive and other USB devices, but not the C250 which appears in My Computer as portable media player. Connection to PC "works" as I have been able to populate with CD's, via Windows Media Player, after having installed CD's with Winamp and ended up with MPEG4's, which I cannot play with the C250. Hence my interest in rockbox.   

[bluebrother]

The player must NOT appear as portable media player in explorer but get its own drive letter. Change the USB settings on the player to "MSC". "MTP" is wrong.

[yapper]

You may need to read this:
http://www.rockbox.org/twiki/bin/view/Main/SansaFAQ#My_c200_doesn_t_have_an_MSC_Mode

[BruceHP]

It's best to remove the music you loaded in MTP and reload it after to have Rockbox properly installed.