DVD (Digital Versatile Disk) (page 10)

• Introduction
• DVD Formats
• DVD Configurations and Basic design
• DVD-R and DVD-RW or RAM
• DVD-ROM
• DVD-Video and DVD-Audio
• Red laser vs. Blue laser
• DVD--> VHS
• DVD-->DVD
• DVD R/RW Format Compatibility
• White Papers

  DVD format compatibility

As you may know it, not all DVD recorders are compatible with each other.  And some of them have compatibility issues with your home DVD player.  The next table compares DVD formats from the compatibility viewpoint and summarizes some other features.

Format	Capacity/side	Write cycles	Advantages	Disadvantages
DVD-RAM	4.7GB	100,000	Rewritable; Longer durability; Well tested technology; Improving improving.	Slow when used for data storage; Still incompatible with most DVD drives and players; Relatively expensive disks.
DVD-R	4.7GB	1	Cheaper discs than rewritable media;  High compatibility with older DVD-ROM drives and players.	Not rewriteable (like CD-R).
DVD-RW	4.7GB	1000	Rewritable; Compatible with many current DVD drives and players.	Often incompatible with older drives and players.
DVD+R	4.7GB	1	Has potential for greater compatibility with older drives and players than +RW. Cheaper discs than rewritable discs.	Not rewriteable (like CD-R); Has compatibility issues;
DVD+RW	4.7GB	1000	Rewritable;  Compatible with most current DVD drives and players. Fast;	Largely incompatible with older DVD drives and players.

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