Have spent some time trying to create UDF formatted DVDs readable and writable in both Windows 7 and SLAX 6.1.2.
It started with the discovery that I could read dla DVD-RAM disks written under Windows98 with SLAX. This got my hopes up.
I wrote and deleted some test files in the default Win7 UDF mode in Windows and under SLAX, and that seemed to work. But a disk formatted UDF by Win7 and filled it under SLAX things got ugly. Whole directories were corrupted and couldn't be deleted, both systems locked with the burner spinning spastically, and had to be powered down...
I then discovered that Windows 7 has several UDF formats available. Interestingly, there are more displayed for 5X DVD-RAM than for Sony DVD-RW. I had used the default v. 2.01, so next I tried v. 1.5. This works reasonably well with the 5X DVD-RAM. but not with DVD-RW.
I reformatted both DVD-RAM and DVD-RW disks from UDF 2.01 to UDF 1.5, and noted another difference between the two DVD types. The DVD-RAM disks took more than 30 minutes for a long format, while the DVD-RW disks took less than a minute.
I understand there was a bug report for UDF support in the Linux Kernel, and a patch is available:
for the 2.6.25 version there is a UDF kernel patch if you want to recompile it here:
http://djkaos.wordpress.com/2008/05/28/udf-bug-in-linux-kernel-play-udf-discs-in-fedora-other-distros/I wonder whether this patch was applied in SLAX, and also which version of UDF is supported by SLAX (I've only tried the two).
