These are the advantages of RAM discs over +/-RW, such as:
1. Can be overwritten up to 100,000 times (vs. 1,000 times for +/-RW)
2. Can be write-protected in the properties box, so disc can't accidentally be re-formatted or files deleted.
3. Handles errors better with automatic verify while being written.
4. Can be formatted for either FAT32 or UDF
   UDF is better because it's faster and always writes to a fresh spot on the disc rather than the same spot over and over as FAT32 does
5. Use it as a hard drive. Space returns as you delete. New data will not overwite the old.

DVD-RAM discs are commonly used in PCs, DVD Recorder Equipment and Camcorders.
Due to the availability of fast On-Disc Editing, storing your own recordings on DVD-RAM has
advantages over storing on other formats. Also, imagine using the disc like a hard disk drive,
using the same disc to store data from several sources whether its a DVD recorder, Camcorder or
just plain computer files. RAM-compatible hardware can read/write a DVD-RAM disc containing mixed data types.

DVD-RAM's random access capabilities give it  an edge over its rivals.