Possible to fill out a BD-R completely?

[psisys]

I’ve been searching about this without finding results. If I burn a BD-R with some space to spare, can I fill out the rest with invisible data just to make the disc evenly dark? Somwhat like how pressed BD movies are evenly burned, though the data might occupy a lot less space.

[LIGHTNING UK!]

Make a dummy file and add it to your compilation.