found a workaround thanks to gritree on AVS forums
I changed all my recordings to manual recordings with English names then used this tool http://www.mcedev.com/Product.aspx?id=0274d97e-d7a1-4b4b-a208-c7c8a64cceba
to edit the filenaming string to include only the name and date
a scheduled recording hasn't happened yet, but I'm pretty sure this will work
I'll report back