It turns out I didn't have the most recent version of USB Loader gx. so I upgraded to r 938. RB2 DLC songs still stayed on the wii. i tried reinstalling cios 202, 222, and 223. then reinstalling trucha. and hermes 5. then 5.1 i deleted all dlc off of the sd card and then downloaded a new song. still didn't work. so i installed cfg loader, and it worked! so I am using that now. i nearly drove myself crazy working on this and i have no idea why i couldn't get it to work. well... onward.