<P> Also , behind closed doors at CES 2007 , Ritek revealed that they had successfully developed a High Definition optical disc process that extends the disc capacity to ten layers , which increases the capacity of the discs to 250 GB . However , they noted that the major obstacle is that current read / write technology does not allow additional layers . JVC has developed a three - layer technology that allows putting both standard - definition DVD data and HD data on a BD / ( standard ) DVD combination . This would have enabled the consumer to purchase a disc that can be played on DVD players and can also reveal its HD version when played on a BD player . Japanese optical disc manufacturer Infinity announced the first `` hybrid '' Blu - ray Disc / ( standard ) DVD combo , to be released February 18 , 2009 . This disc set of the TV series `` Code Blue '' featured four hybrid discs containing a single Blu - ray Disc layer ( 25 GB ) and two DVD layers ( 9 GB ) on the same side of the disc . </P>
<P> Also , behind closed doors at CES 2007 , Ritek revealed that they had successfully developed a High Definition optical disc process that extends the disc capacity to ten layers , which increases the capacity of the discs to 250 GB . However , they noted that the major obstacle is that current read / write technology does not allow additional layers . JVC has developed a three - layer technology that allows putting both standard - definition DVD data and HD data on a BD / ( standard ) DVD combination . This would have enabled the consumer to purchase a disc that can be played on DVD players and can also reveal its HD version when played on a BD player . Japanese optical disc manufacturer Infinity announced the first `` hybrid '' Blu - ray Disc / ( standard ) DVD combo , to be released February 18 , 2009 . This disc set of the TV series `` Code Blue '' featured four hybrid discs containing a single Blu - ray Disc layer ( 25 GB ) and two DVD layers ( 9 GB ) on the same side of the disc . </P>
what does blu ray dvd combo pack mean
what does blu ray dvd combo pack mean
purchase a disc that can be played on DVD players and can also reveal its HD version when played on a BD player
purchase a disc that can be played on DVD players and can also reveal its HD version when played on a BD player