Samsung DVD-SH853 Instruction Manual page 65

Select one of four recording modes by pressing the REC MODE button
repeatedly while the unit is in Stop mode for the desired recording time
and picture quality. In general, picture quality improves as the
recording time decreases. In FR mode, the most suitable record mode is
adjusted automatically, according to remaining time on the disc and
length of the timer recording. This function is selected only one mode in
XP, SP, LP and EP modes and you can use this mode for timer recording.