A right bummer. My laptop broke a while ago, so have a new one and have been reloading stuff. All good so far.
BUT I have used ReplayGain Album tags on all my FLACs, and I know I didn't use the default settings or even which one. I THINK (99% sure) it was EBU R 128 but what the LUFS Target Volume was I have no idea! I know it wasn't the default -18 though, I remember it being too quiet for my taste.

So - is there anything in the tags that says what scheme or LUFS was used? Or if not, can anyone remember what most people usually set it to? -16? -14?
Having ReplayGain to normalise volume when the new tags no longer match won't be much good!

Ta in advance