I have searched the site and was unable to find and recent topics about the subject information. I have contacted 1 member from his post in 2016. I can only expect to try and post again on where to acquire the latest FS-4 firmware for my recent Ebay purchase. I have already upgraded the unit from a 60GB to 120GB. I am also experimenting with using an IDE compact flash reader. There is also a manufacture who makes an IDE SSD drive in various GB configurations. If you or you know someone who has the firmware updates I would appreciate your leads of files if you have them still.