When my family access my media server through the web interface and select the "Download Original File" option from the Media Properties page, the files are always renamed with a "taz" prefix, e.g. taz1l0z5l107l163zvl8153x06b6.mp4. This happens irrespective of the actual file name on the server, and it also happens if I use the web interface locally.

Is there a setting somewhere that I'm missing that controls this, or is there a way of serving them with the actual filename?

Thank you,