DVD-RAM, UDF 2.x, Daylight Saving, TimeStamp

Hi,

If you FileSynch to a FAT volume (e.g. Data Stick) or UDF 1.5 CD-RW
there's a problem with daylight saving and file date/time stamps.

If you do a backup in the summer, then do a FileCompare in the winter,
many files will show as "different" because the FAT and UDF 1.5 disks
will only stamp files with LOCAL time instead of UTC.

In theory UDF 2.x has an extra field where you can set TimeZone info,
but does this field actually get used in software such as InCD and the
Windows o/s?

--
Gerry_uk

.. --------------------------------------
Mike Richter, were you born with
"Scam Artist" emblazoned on your face?
--------------------------------------

Gerry_uk wrote:

Hi,

If you FileSynch to a FAT volume (e.g. Data Stick) or UDF 1.5 CD-RW
there's a problem with daylight saving and file date/time stamps.

If you do a backup in the summer, then do a FileCompare in the winter,
many files will show as "different" because the FAT and UDF 1.5 disks
will only stamp files with LOCAL time instead of UTC.

In theory UDF 2.x has an extra field where you can set TimeZone info,
but does this field actually get used in software such as InCD and the
Windows o/s?

Time stamp issue is more complex. For example:
http://www.pcmag.com/article2/0,1759,1736242,00.asp

InCD 5.5.0.5 time stamp problem is fixed in InCD 5.5.0.11 bundled in
Nero 7.5.9.0A.
..

================================================== =
Mike Richter - the Slimiest Lying Friggin SOB (UDF)
================================================== =

The slimiest lying friggin SOB Mike Richter has been for YEARS
blaming the UDF -- to weasel out the bugs of DirectCD:

------------------------------------------
UDF is a fragile format
UDF is an unreliable format

the format is very fragile and unreliable
The format is bad - it loses data
The fault is not with the software but with the format

There is an inherent problem in UDF
Packet writing is the same as UDF.

I have used only DCD for packet writing,
have had no problems due to the software
- but too many due to the format itself

to bother with it any longer.
------------------------------------------

But then again:

======================
From: Mike Richter (the Slimiest Lying Friggin ****)
Date: 5/4/06
Subject: UDF Has just bit me in the bum

I have used UDF for many years, but yesterday I had my first
corruption. I am now wondering whether to bother with UDF

First, your problem is not with UDF
======================

-------------------------------
Wow! What a slimy friggin SOB!
----------------------------------------------
Mikey, you are the Slimiest Lying Friggin SOB!
----------------------------------------------
Mike Richter, were you born with
"Scam Artist" emblazoned on your face?
--------------------------------------
(Mike Richter, any Material Connection w/ Roxio?)

Gerry_uk wrote:
Hi,

If you FileSynch to a FAT volume (e.g. Data Stick) or UDF 1.5 CD-RW
there's a problem with daylight saving and file date/time stamps.

If you do a backup in the summer, then do a FileCompare in the winter,
many files will show as "different" because the FAT and UDF 1.5 disks
will only stamp files with LOCAL time instead of UTC.

In theory UDF 2.x has an extra field where you can set TimeZone info,
but does this field actually get used in software such as InCD and the
Windows o/s?

I've seen similar problem when I use file comparator to check files on
flash drive vs hd. Flash drive shows newer sometimes even though I've
copied from hd and date/time is same. Never really pursued as to why.
Dave Cohen

Hi Dave,

I'm fairly sure you'll find this is related to your issue of the files
not comparing properly. The fix algorithm is somewhat complex and has to
account for copy to and from different file systems.

I'm interested to know if Microsoft's new Synch manager in Vista takes
this into account?

Dave Cohen wrote:
Gerry_uk wrote:
Hi,

If you FileSynch to a FAT volume (e.g. Data Stick) or UDF 1.5 CD-RW
there's a problem with daylight saving and file date/time stamps.

If you do a backup in the summer, then do a FileCompare in the winter,
many files will show as "different" because the FAT and UDF 1.5 disks
will only stamp files with LOCAL time instead of UTC.

In theory UDF 2.x has an extra field where you can set TimeZone info,
but does this field actually get used in software such as InCD and the
Windows o/s?

I've seen similar problem when I use file comparator to check files on
flash drive vs hd. Flash drive shows newer sometimes even though I've
copied from hd and date/time is same. Never really pursued as to why.
Dave Cohen


--
Gerry_uk