Asus S5N laptop

This system uses an external CD/DVD player via a USB port.  It seems to be 
at /dev/scd0
with a symbolic link there from /dev/dvd:

% ls -l /dev/hdd /dev/scd0
brw-rw----  1 root disk 22, 64 Sep 15  2003 /dev/hdd
brw-------   1 rdt  disk 11,  0 Sep 15  2003 /dev/scd0


Debug output from ogle says:

/dev/dvd -> scd0
Valid DVD devices:
WARNING: No DVD devices found

but unencrypted DVDs play fine in ogle.. Encrypted ones give

libdvdcss error: css error: ioctl_ReadCopyright failed, make sure there is a 
DVD in the
drive, and that you have used the correct device node.
libdvdcss debug: could not check whether the disc was scrambled

then the FBI warning, then numerous repetitions of

libdvdcss error: fatal error in vts css key
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_01_1.VOB (0x00009ef7)!!
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_02_0.VOB at 0x002aff20
libdvdcss debug: cracking title key
libdvdcss error: read error
libdvdcss debug: read error, resorting to secret arcanes to recover
libdvdcss debug: opening target `/dev/dvd'
libdvdcss debug: using libc for access
libdvdcss error: read error
libdvdcss debug: end of title reached
libdvdcss debug: 0 of 0 attempts successful, 0 of 0 blocks scrambled

and then ogle fails:

FATAL[ogle_mpeg_ps]: dvdreadblocks failed

Regionset fails to read (much less set) the region code on the DVD.

What do I do?

Bob T.

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