UDF : Computer Hardware Buyers’ Glossary
aka ECMA-167. UDF (Universal Disk Format). It is a CD (Compact Disc)
and DVD (Digital Video Disc)
format that allows you to treat a re-writable CD
like a hard disk, replacing files and gradually adding to the disc. You can’t
play UDF discs in
audio CD players. You
can’t read them on older OSes (Operating Systems). For write-once discs, or broad compatibility,
you should use one of the older disc-at-once formats, such as
ISO (International Standards Organisation) 9660. For discs you
will only be using yourself, UDF is more convenient. CDs (Compact Discs)
can be either ISO-9660 or UDF format. UDF
packs more data onto a CD.
Windows Live File System usen UDF
to allow you to incrementally add files to a CD/DVD (Compact Disc/Digital Video Disc)
write that writing the whole disk at once.
DVDs (Digital Video Discs)
are UDF format.
UDF comes in many
versions 1.0, 1.02, 1.5, 2.0, to 2.01. Not all players support all versions, so for
compatibility, you often deliberately use an old version.