I was pretty sure about it, but I need a confirmation; thanks!
I thought to do a color regrading of the FOTS using DVD as color reference, and leave the others as they are - if the don't need some adjustment, but I don't think so; only, as there are some empty space in each BD-50 - up to 10/11GB in some, IIRC - I thought to add those five soundtracks to fill that space...
Good or bad idea?