I can't seem to log back on to reply properly, so here I am.
I've tried putting the same folders into a smaller freshly fomatted card, but those exact same folders/files do not work.
I've opened the properties on working files and non-working files and I can't for the life of me find any...
I have a 64GB FAT32 formatted flash drive I use for music in my car.
I have quite a bit of music on there, and most work fine.
My problem is there are a few folders that it simply refuses to read. I've compared the folders and file settings to ones that do work, and I see no difference...