I have been running this firmware on a WL-520GU for a few years now. Today, I wanted to try attaching a USB 2.0 External DVD-RAM (brand is LG). I've set the USB Support settings and it correctly identifies the device as HL-DT-ST DVDRAM GSA-H10A however it cannot mount it. When I press the "Mount" button, the error message "Failed to mount. Verify the device is plugged in and try again." I tried other USB devices such as external hard drive and pen drives, and they all mount fine. I tried attaching the USB External DVD-RAM to my Windows PC and it works fine.
Any ideas why the external DVD-RAM won't mount in TomatoUSB?