I've found a workaround. Unlike most trial versions of programs, this one just forgets it was ever installed if you just uninstall and reinstall it. It will disable itself again, though I'm not sure if it was after whatever amount of burns or whatever amount of time. I'm currently burning the 11th disc of 12, and then I'll be done with that.
Of course, now my mother wants a copy of the discs too (I made her a flash drive with them, but she wouldn't know what to do with that.) Have to figure out an easy way to just copy the discs I already made since I don't want to have to wait for the encodes again.