There are a few different DVD formats available on the market. The most common are DVD-R and DVD+R. These formats use a red laser to read the disc. They are both write once formats, which means that you can only write data to the disc once. If you want to erase the data and rewrite it, you have to use a special erasing disc.

DVD-RW and DVD+RW are re-writeable formats. This means that you can erase and rewrite data on the disc multiple times. However, the read and write speeds are a bit slower than the write once formats.

Finally, …