Are you using a 360 or PS3/Wii? The files are created for 360 first and other platforms do indeed require conversion.
What exactly is saying they're not valid files?
i'm xbox 360. i do have a digital copy on my drive currrently. should that be deleted? there is no updates at all listed like at the start of this tutorial.
i downloaded the files directly from here and i'm trying to add to usb via drag and drop and i get invalid rock band files...one second. files say 0 bytes so chrome was not really downloading the file. works now
i'll let you know
do i need the song cache? wondering if both versions of rb3 will conflict. perhaps disc can be offline and digital online?