Universal Disk Format


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Universal Disk Format

(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.
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Since Windows XP supports the Universal Disk Format (UDF) file system, Acronis True Image can take advantage of this file system and create images via the UDF.
-- SimpliCD-ReWrite -- This module includes a Universal Disk Format (UDF) read/write device driver with defect management to allow CD-RW discs to be used like floppy disks, with random and incremental writing and erasing.
OSTA recently announced its adoption of the Universal Disk Format (UDF), primarily for CD-Recordable optical media.

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