I have a project where I am trying to write data from a unix file system to DVD-R (as a backup or
archive), and I would like to use the udf format on DVD-R media. I can write the data with the
9660 format now, but that is stretching the bounds of the ISO format and udf has some big
advantages. I have been part of a thread on this topic in the DVD-DATA list, and one of the
members mentioned your tools. He uses them for DVD-RAM, and likes them quite a bit. We took
look at your docs and the sources, and didn't find a direct reference to DVD-R. I know that this is
somewhat of a different format (streaming rather than a block write) than what it looks like you
doing with the udf tools now, but I think I see some hints in the code and the docs that imply that
there was some thought of adding something for DVD-R.
I don't have linux driver support for the DVD-R combo drive that I have, so I have to create an
image on the linux/solaris machines and then use some Windows software to write the raw
filesystem to the disk. It works. It also gives me a workaround that I might be able to use with
UDF. Is it currently possible with your tools to write a file that contains the UDF file system?
That seems to be a hidden feature in several of the other file system creation tools as a
debugging option. Have you thought about supporting DVD-R drives?
Thanks in advance,
Santa Barbara, CA
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