If you want to use drag & drop on rewritables then you must use something like InCD. But beware it isn't that safe so trust nothing important to these disks.
It really depends why you think you need InCD. I'd think it better & safer to remove it & use only RAM disks for drag & drop. Much , much safer.
I regularly use rewritables but I create a compilation from Nero , ImgBurn etc & then burn the whole compilation. Typically this would be for testing out any video encoding I've do before committing it to DVD+R.