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keisukey
27th December 2004, 03:38
from the faq..
Nero makes coasters when trying to record files larger than 2 GB. Why?
Nero 6 seems to be b0rked. Unlike Nero 5, it sometimes forgets to pop up an error message when the user tries to add a file > 2 GB to an ISO compilation. You have to use UDF.

so what exactly is UDF? i really want to know how to make a clean burn of a 4gig dvd w/ nero..

twist3d
27th December 2004, 04:25
udf is a filesystem. here's a snippet from webopedia:

- Universal Disk Format (UDF)
Abbreviated as UDF, a universal vendor-independent file system for optical media designed for data interchange and portability, allowing an operating system to read, write and modify data stored on optical media that was created by another operating system.

DVDs are based on the UDF format and CD-R and CD-RW disks use UDF as an optional second standard.

UDF, defined by the Optical Technology Storage Association (OTSA), is a subset of ISO 13346, an interchange standard for non-sequential recording of data.

you can select udf-filesystem from nero when creating a new disc.
here are the version differences (from cdfreaks.com):


UDF 1.02 as first released UDF revision is know by most implementation on the market. It is used for DVD-Video for instance.

UDF 1.50 defect management makes it the usual choice for CD-RW, DVD+RW and DVD-RW (except MRW, as they do have defect management at hardware level) .

File streams of UDF 2.00 allows to have multiple stream per file, like on NTFS. ACL and power calibration are optional features not used by InCD.

Real Time Files from UDF 2.01 is useful for streaming, for instance video streaming.

The metadata partition from UDF 2.50 regroups the metadata information (information about files, directory and the volume in general) in a partition on the media, so both (read) access is faster and a duplicate of this information is possible (with sector-to-sector match so a recovery software can re-build the information even if both partitions are partially damaged).

keisukey
28th December 2004, 05:37
so which should i choose for data dvd w/ video on it? 1.02 i guess?

twist3d
8th January 2005, 17:44
UDF 1.02 is supported by all dvd-standalones (as it's dvd-rom's filesystem), so the answer to your question is yes :)

blutach
9th January 2005, 05:05
You could, if you wanted, use the DVD-ROM (ISO/UDF bridge) and manually select UDF 1.02. That way, PCs would definitely recognise the files too (older PCs, at least, read ISO filesystem).

But easier than anything is to burn an ISO image with DVD Decrypter.

Refer here (http://forum.digital-digest.com/showthread.php?s=&threadid=45025) for more info.

Regards