I can do that but not really a fix. I use a program called namewiz to rename my files. It requires me to put each disc in a sub directories. I think I will copy them to a main dir when I am done
Another option -- stick with namewiz and use dbpoweramp to manage your shn>flac conversions. DB poweramp allows you to right click on a file (or series of selected files) and have all selected coverted to whatever format you want, including FLAC -- you could use the windoze search function to find "*.flac" in the appropriate directory subtree, select all files found, right click and have dbpoweramp convert each file to flac (and, if appropriate delete source files when done)