Finalizing a disk thats been wrote with a standalone!

hello to all
well i’ve gone & done it again. talking to a co-worker& his shitty stand alone player took a he has about 25 dvd+r s that are not finalized & in knowing this forum & all here have usually diecent advice.
so the question is can these disks be finalized in a computer witha dvd drive??
and if so how?? these disk are purely for standalone players.any advice would be great!!
thanks in advance :slight_smile: