UDF 2.01 - Any advantages over "normal" 1.02

I burn lots of data DVDs (Backups, DivX stuff etc.)
I always use UDF in Nero, because it’s the newer format and doesn’t have the ISO restrictions (filename length, directory depth, etc.).

Now I wonder if there are any real benefits in using UDF 2.01 over the default UDF 1.02.
There is not much (if any) useful information available using Google or the forums search.

Someone pointed out (in an old thread in these forums) that newer UDF revisions offer greater redundancy, which might make it easier recovering data via ISOBuster, but he did’t give any specifics.

Compatibility doesn’t seem to be a limiting factor for me, as both WinXP and newer Linuxes can read UDF 2.01 (I tried it).

So here again my question: is there a benefit in using newer UDF versions ?
For example as to reliability / redundancy ?

Thanx in advance for ur answers.


Here is a chart:

UDF 2.0+ is better for multi-session (esp. read/write) things. Otherwise, I think 1.02 is all you need.

Yes, use 2.01. Higher spec is available with InCD for DVD-RAM but unnecessary for Multi-Session or DAO.


UDF 1.02: first release; primarily useful for read-only media like DVD-ROM.
UDF 1.50: adds defect management, useful for RW (except MRW which includes DM at HW level).
UDF 2.00: adds support for Stream Files, Access Control Lists, and Power Calibration.
UDF 2.01: adds support for Real Time Files, useful for video streaming.
UDF 2.50: adds Metadata Partition for faster read & redundancy.
UDF 2.60 adds Pseudo OverWrite