error "trying to change type of multiple extents" running mkudffs

Hi

I have opensuse 10.2 and i'm trying to use udf cd's.

I tried with this:

# pktsetup 0 /dev/hdc

# mkudffs --vid=varios5 --media-type=cdrw /dev/pktcdvd/pktcdvd0
and i get the error:
trying to change type of multiple extents

also i tried with:
# cdrwtool -d /dev/hdc -t2 -q
using device /dev/hdc
setting speed to 2
1029KB internal buffer
setting write speed to 2x
Settings for /dev/hdc:
        Fixed packets, size 32
        Mode-2 disc

I'm going to do a quick setup of /dev/hdc. The disc is going to be blanked
and formatted with one big track. All data on the device will be lost!!
Press CTRL-C to cancel now.
ENTER to continue.

Initiating quick disc blank
Disc capacity is 274944 blocks (549888KB/537MB)
Formatting track
wait_cmd: Input/output error
Command failed: 04 17 00 00 00 00 00 00 00 00 00 00 - sense 00.00.00
format disc: Illegal seek

someone knows how to make work the udf filesystem?
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