H264 RF Quality

[bdp]

I have a number of Blu Ray Rips that are H264 compression mp4 and range in size from 1.8 GB to about 6 GB. I wanted to use handbrake to burn in the substitles and was not sure if a lower RF setting would really help. Is it a waste of HD space since the quality is limited to the original? For example a 2.4 GB H264 video that because of a lower RF setting resulted in a 3.3 GB copy with the burned in subtitles be any better than the original 2.4? Or due to the original compression I can use a lower setting to convert the video to a higher quality and closer to the lossless original. Thanks

[mduell]

A reencode is never better, always worse, but perhaps not noticeably worse.

The best option is to start from the original BR rip, not some intermediate copy.