EZ-D
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EZ-D is a DVD technology developed by Flexplay Technologies and General Electric to create time-limited DVD discs which become unplayable after a pre-determined period (e.g. 48 hours).
The EZ-D disc contains a layer made of a modified form of Lexan. The new co-polymer degrades once exposed to air, becoming opaque rather than transparent. The EZ-D would be supplied in an airtight cover and once opened the layer would begin to react.
The intended market for the EZ-D discs is short-term hire and promotional deals. Once unplayable the disc can be recycled or disposed of. Since the disc is capable of being used in any standard DVD player, the manufacturers hope it will succeed where other time-limited DVD technologies, such as DIVX, have failed. Test marketing began on August 2003.
External links
- Flexplay Technologies (http://www.flexplay.com/)
- Buena Vista Home Entertainment's EZ-D site (http://www.ez-d.com/)
- How EZ-D DVDs Work (http://www.flexplay.com/how-flexplay-works.htm)
- United States patents 6,511,728 (http://patft.uspto.gov/netacgi/nph-Parser?TERM1=6511728&u=/netahtml/srchnum.htm&Sect1=PTO1&Sect2=HITOFF&p=1&r=0&l=50&f=S&d=PALL), 6,537,635 (http://patft.uspto.gov/netacgi/nph-Parser?TERM1=6537635&u=/netahtml/srchnum.htm&Sect1=PTO1&Sect2=HITOFF&p=1&r=0&l=50&f=S&d=PALL), 6,641,886 (http://patft.uspto.gov/netacgi/nph-Parser?TERM1=6641886&u=/netahtml/srchnum.htm&Sect1=PTO1&Sect2=HITOFF&p=1&r=0&l=50&f=S&d=PALL), 6,678,239 (http://patft.uspto.gov/netacgi/nph-Parser?TERM1=6678239&u=/netahtml/srchnum.htm&Sect1=PTO1&Sect2=HITOFF&p=1&r=0&l=50&f=S&d=PALL), 6,709,802 (http://patft.uspto.gov/netacgi/nph-Parser?TERM1=6709802&u=/netahtml/srchnum.htm&Sect1=PTO1&Sect2=HITOFF&p=1&r=0&l=50&f=S&d=PALL), 6,756,103 (http://patft.uspto.gov/netacgi/nph-Parser?TERM1=6756103&u=/netahtml/srchnum.htm&Sect1=PTO1&Sect2=HITOFF&p=1&r=0&l=50&f=S&d=PALL), 6,780,564 (http://patft.uspto.gov/netacgi/nph-Parser?TERM1=6780564&u=/netahtml/srchnum.htm&Sect1=PTO1&Sect2=HITOFF&p=1&r=0&l=50&f=S&d=PALL), 6,838,144 (http://patft.uspto.gov/netacgi/nph-Parser?TERM1=6838144&u=/netahtml/srchnum.htm&Sect1=PTO1&Sect2=HITOFF&p=1&r=0&l=50&f=S&d=PALL), and 6,839,316 (http://patft.uspto.gov/netacgi/nph-Parser?TERM1=6839316&u=/netahtml/srchnum.htm&Sect1=PTO1&Sect2=HITOFF&p=1&r=0&l=50&f=S&d=PALL) by Flexplay Technologies