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universal disk format

universal disk format in Technology

storage, standard
(UDF) A CD-ROM file system standard that is required for DVD ROMs. UDF is the OSTA's replacement for the ISO 9660 file system used on CD-ROMs, but will be mostly used on DVD. DVD multimedia disks use UDF to contain MPEG audio and video streams.
To read DVDs you need a DVD drive, the kernel driver for the drive, MPEG video support, and a UDF driver. DVDs containing both UDF filesystems and ISO 9660 filesystems can be read without UDF support.
UDF can also be used by CD-R and CD-RW recorders in packet writing mode.

The Free On-line Dictionary of Computing, © Denis Howe 2010
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