[QUOTE=deezalboy;2483565][B]More convenient at my computer. It`s common knowledge that “r” discs cannot be erased. [/B][/QUOTE] They can be “erased” with some special drives like e.g. Plextor PX-755/760, PlexEraser, and LiteOn drives featuring the SmartErase function. Erasing such discs makes them unreadable, not reusable.