Methods used against bad breath, such as mints, mouth sprays, mouthwash or gum, only temporarily mask the odors created by the bacteria on the tongue, but cannot cure bad breath because they do not remove the source of the bad breath.
A DVD-R is a write-once format: once youâve burned the data onto that DVD platter, the disk is forever frozen with that information. Add the âWâ to that, and youâll find that DVD-RW can be erased or rewritten up to a thousand times.
DVD R vs. DVD RW. The main difference between DVD R and DVD RW is that the R is a write-once format. Data can be burned on the DVD only once. On the other hand, data on an RW disc can be erased and rewritten several times. Both DVD R and DVD RW come in +/- formats. The essential difference between DVD +/-R and DVD +/-RW remains the same regardless of the + or -.