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UDF style discs

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  UDF style discs "Benjamin David Lunt" <zfysz@fysnet.net> - 2016-05-02 18:02 -0700
    Re: UDF style discs "wolfgang kern" <nowhere@never.at> - 2016-05-03 07:32 +0200
    Re: UDF style discs Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-05-03 16:57 -0400

#9478 — UDF style discs

I'm curious to see if anyone here has worked with UDF formatted
CD-ROM's as opposed to ISO 9660 formatted discs.

I needed to get some information off a disc and was surprise to
see a different format.  After a little research, I found some info
and updated my MTOOLS package to include this format.
  http://www.fysnet.net/mtools.htm

The MGetCD and MCDInfo utils now will work with UDF discs, at
least the disc I had to retrieve info from.

More info at:
 http://www.osta.org/specs/pdf/udf260.pdf
 http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-167.pdf

Thanks,
Ben

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#9479

Hi Ben,

> I'm curious to see if anyone here has worked with UDF formatted
> CD-ROM's as opposed to ISO 9660 formatted discs.

My work on BlueRay-disk support is still in progress ... 
 
> I needed to get some information off a disc and was surprise to
> see a different format.  After a little research, I found some info
> and updated my MTOOLS package to include this format.
>  http://www.fysnet.net/mtools.htm
 
> The MGetCD and MCDInfo utils now will work with UDF discs, at
> least the disc I had to retrieve info from.
 
> More info at:
> http://www.osta.org/specs/pdf/udf260.pdf
> http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-167.pdf

thanks for the links, I got all(?) info from: "UDF - OSDev Wiki.htm"

__
wolfgang 

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#9487

On Mon, 2 May 2016 18:02:34 -0700
"Benjamin David Lunt" <zfysz@fysnet.net> wrote:

> I'm curious to see if anyone here has worked with UDF formatted
> CD-ROM's as opposed to ISO 9660 formatted discs.

Used?  Yes.  Worked with?  No.

My dad saves his tax files on a UDF formatted CD-ROM.  It works just
like a large read/write floppy or hard disk partition when it's working
correctly.  Unfortunately, he forgets to "eject device" via software
before he pushes the CD eject button.  So, Windows sometimes fails to
update the file allocations before ejecting the disk.  The next time he
accesses the CD he can't write to it because Windows thinks it's
blank or full, but the files are still present and accessible.  I.e.,
copy off all files, reformat, copy files back.


Rod Pemberton

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