.RUF File Extension
Samsung DVD and Blu-ray Player Firmware File
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What is a RUF file?
Firmware file used by Samsung Blu-ray and DVD players; contains operating system-level functions that run the player; used to deploy firmware upgrades using a USB storage device.
NOTE: The USB flash drive must be empty except for the RUF file for the firmware to be upgraded properly. Updates may be performed by plugging the USB drive containing the RUF file into the player.