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Tuesday 2.12.2008 / 01:04 AM
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Glossary

BD-25

A BD-25 is the popular name for a single layer Blu-ray disc. Each layer can hold approximately 25GB of data.

More popular however, is the dual layer BD, the BD-50.

For the future however, there is the possibility of multi-layer discs which would add 25GB capacity per layer.

Due to its large size, 4.5 hours of HD video and over 12 hours of SD video can fit on a single layer BD-25.

In comparison, a dual layer DVD can hold up to 8.5GB of data and a dual layer HD DVD can hold up to 30GB of data.

For more information, see the glossary definitions for:

1080p 720p Authoring BD BD-50 BD-R BD-RE BD-ROM BDA BDMV Blu-ray Blu-ray Disc Association DVD DVD+R DVD+R DL DVD-9 DVD-R DVD-R DL DVD-Video HD DVD HD DVD-R
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