DVD formats

The most widely known format currently is DVD-Video, which we know of as DVD movies that we can purchase at the local store. Other formats include DVD-A, DVD-ROM, DVD-R, DVD-RW, DVD +R, DVD+RW, and DVD-RAM. Each has its own use and special purpose.

• DVD-A: This stands for DVD-Audio, which is a new audio format just starting to hit the market. It allows for better-than-CD quality and multiple channel surround sound.
• DVD-ROM: ROM stands for Read Only Memory. This is typically used for data storage and software titles. Video games are starting to come out on this format with more to follow.
• DVD-R: This stands for DVD-Recordable. This is a “once-recording” format, which means you cannot erase the information that has been previously written and write new information.
  
• DVD-RW: The RW stands for Re-Writeable. Unlike DVD-R, this format allows you to erase info on the disc and write new info in its place.
  
• DVD+RW: The only difference between this format and DVD-RW is the “+RW” format is accepted in most DVD video players and DVD-ROM drives.
• DVD-RAM: RAM stands for Random Access Memory. These discs work similarly to 3.5 floppy disks. You are able to transfer files on and off the disc at will. Though great for data, these disc are not ideal for video because they do not play on standard video decks.