Fix automatically invalid filenames when copying to a vfat-filesystem
## Submitted by Bernard Decock
Assigned to **Jannis Pohlmann**
**[Link to original bug (#10847)](https://bugzilla.xfce.org/show_bug.cgi?id=10847)**
## Description
Created attachment 5458
Invalid filename when copying to usb-stick
When I want to copy a screenshot to a vfat-usb-stick, I always get an error that the filename is invalid. The filename contains ":"-characters which apparently are not allowed characters in a vfat-filesystem. I was not aware of this problem, because I used Nautilus on an Ubuntu-system. I upgraded a relative's computer to Xubuntu 14.04 and he noticed me, that he could not save a screenshot to his usb-memory-stick. Renaming the file (eg. deleting the ":"'s) solves the problem. I wondered why I didn't have this problem with Nautilus. Well, Nautilus is automatically replacing the ":" with an underscore when writing the file to the usb-stick.
Can this feature be enabled, implemented in Thunar? Otherwise, one has to rename the files manually. User's normally don't understand why the filename is invalid.
**Attachment 5458**, "Invalid filename when copying to usb-stick":

issue