[dvd::rip] DVD::RIP fails but transcode doesn't... please help

I am having a problem transcoding a DVD to xvid. Here is the error log from DVDRIP:
Command exits with failure code:
Command: mkdir -m 0775 -p '/archive/work/dvdrip/breachDVD/tmp' && cd /archive/work/dvdrip/breachDVD/tmp && mkdir -p /archive/work/dvdrip/breachDVD/avi/001 && execflow -n 19 transcode -H 10 -a 0 -x vob -i \/archive\/work\/dvdrip\/breachDVD\/vob\/001\/ -w 429,50 -c 3-503 -L 49007 -A -N 0x2000 -I 3 -f 24,1 -M 2 -Y 12,0,12,0 -B 15,10,8 -y xvid4 -o /archive/work/dvdrip/breachDVD/avi/001/breachDVD- 001.avi --print_status 25 && echo EXECFLOW_OK

Output: transcode v1.0.4 (C) 2001-2003 Thomas Oestreich, 2003-2004 T. Bitterberg, 2004-2007 Transcode Team
tc_memcpy: using sse for memcpy
[import_vob.so] v0.6.0 (2003-10-02) (video) MPEG-2 | (audio) MPEG/AC3/PCM | (subtitle)
[export_xvid4.so] v0.0.6 (2007-08-11) (video) XviD 1.0.x series (aka API 4.0) | (audio) MPEG/AC3/PCM
open file: Interrupted system call
[import_vob.so] failed to init stream sync mode
video import module error: OPEN failed
[transcode] critical: failed to open input source
[transcode] auto-probing source /archive/work/dvdrip/breachDVD/vob/001/ (failed)
[transcode] V: import format    | unknown (V=vob|A=(null))
[transcode] V: AV demux/sync    | (2) initial MPEG sequence / enforce frame rate
[transcode] V: import frame     | 720x576 1.25:1
[transcode] V: de-interlace     | (mode=3) zoom to full frame (slow)
[transcode] V: new aspect ratio | 640x456 1.40:1 (-B)
[transcode] V: clip frame (->) | 640x432
[transcode] V: bits/pixel       | 0.065 (low)
[transcode] V: decoding fps,frc | 23.976,1
[transcode] V: Y'CbCr           | YV12/I420
[transcode] A: import format    | 0x2001 AC3/A52      [48000,16,2]
[transcode] A: export format    | 0x2000 AC3          [48000,16,2]    0 kbps
[transcode] V: encoding fps,frc | 23.976,1
[transcode] A: bytes per frame | 8008 (8008.000000)
[transcode] A: adjustment       | 0@1000
[transcode] V: IA32/AMD64 accel | sse2 (sse2 sse mmxext mmx asm C)
[transcode] V: video buffer     | 10 @ 720x576
[import_vob.so] tccat -i "/archive/work/dvdrip/breachDVD/vob/001/" -t vob -d 0 -S 49007 | tcdemux -a 0 -x ac3 -S 0 -M 2 -d 0 | tcextract -t vob -a 0 -x ac3 -d 0 | tcextract -t raw -x ac3 -d 0
[import_vob.so] tccat -i "/archive/work/dvdrip/breachDVD/vob/001/" -t vob -d 0 -S 49007 | tcdemux -s 0x80 -x mpeg2 -S 0 -M 2 -f 23.976024 -P /tmp/fileTjlq7a   -d 0 | tcextract -t vob -a 0 -x mpeg2 -d 0 | tcdecode -x mpeg2 -d 0 -y yv12

Now if I run the same command on the command line:

% mkdir -m 0775 -p '/archive/work/dvdrip/breachDVD/tmp' && cd /archive/work/dvdrip/breachDVD/tmp && mkdir -p /archive/work/dvdrip/breachDVD/avi/001 && execflow -n 19 transcode -H 10 -a 0 -x vob -i \/archive\/work\/dvdrip\/breachDVD\/vob\/001\/ -w 429,50 -c 3-503 -L 49007 -A -N 0x2000 -f 24,1 -M 2 -Y 12,0,12,0 -B 15,10,8 -R 1 -y xvid4,null -o /dev/null --print_status 25 && echo EXECFLOW_OK
EXEC_FLOW_JOB_PID=93917
transcode v1.0.4 (C) 2001-2003 Thomas Oestreich, 2003-2004 T. Bitterberg, 2004-2007 Transcode Team
[transcode] (probe) suggested AV correction -D 0 (0 ms) | AV 0 ms | 0 ms
[transcode] auto-probing source /archive/work/dvdrip/breachDVD/vob/001/ (ok)
[transcode] V: import format    | MPEG-2 (V=vob|A=vob)
[transcode] V: AV demux/sync    | (2) initial MPEG sequence / enforce frame rate
[transcode] V: import frame     | 720x480 1.50:1 encoded @ 16:9
[transcode] V: new aspect ratio | 640x360 1.78:1 (-B)
[transcode] V: clip frame (->) | 640x336
[transcode] V: bits/pixel       | 0.083 (low)
[transcode] V: decoding fps,frc | 23.976,1
[transcode] V: multi-pass       | (mode=1) writing data (pass 1) to divx4.log
[transcode] V: Y'CbCr           | YV12/I420
[transcode] A: import format    | 0x2001 AC3/A52      [48000,16,2] 448 kbps
[transcode] A: export           | disabled
[transcode] V: encoding fps,frc | 23.976,1
[transcode] A: bytes per frame | 8008 (8008.000000)
[transcode] A: adjustment       | 0@1000
[transcode] V: IA32/AMD64 accel | sse2 (sse2 sse mmxext mmx asm C)
tc_memcpy: using sse for memcpy
[transcode] V: video buffer     | 10 @ 720x480
[import_vob.so] v0.6.0 (2003-10-02) (video) MPEG-2 | (audio) MPEG/AC3/PCM | (subtitle)
[export_null.so] v0.1.2 (2001-08-17) (video) null | (audio) null
[export_xvid4.so] v0.0.6 (2007-08-11) (video) XviD 1.0.x series (aka API 4.0) | (audio) MPEG/AC3/PCM
[import_vob.so] tccat -i "/archive/work/dvdrip/breachDVD/vob/001/" -t vob -d 0 -S 49007 | tcdemux -a 0 -x ac3 -S 0 -M 2 -d 0 | tcextract -t vob -a 0 -x ac3 -d 0 | tcextract -t raw -x ac3 -d 0
[import_vob.so] tccat -i "/archive/work/dvdrip/breachDVD/vob/001/" -t vob -d 0 -S 49007 | tcdemux -s 0x80 -x mpeg2 -S 0 -M 2 -f 23.976024 -P /tmp/fileoMZExP   -d 0 | tcextract -t vob -a 0 -x mpeg2 -d 0 | tcdecode -x mpeg2 -d 0 -y yv12
tc_memcpy: using sse for memcpy
tc_memcpy: using sse for memcpy
tc_memcpy: using sse for memcpy
[decode_mpeg2.c] libmpeg2 acceleration: mmxext[export_xvid4.so] Reading configuration from './xvid4.cfg'
[export_xvid4.so] Reading config section 'features' from './xvid4.cfg'
[export_xvid4.so] Reading config section 'quantizer' from './xvid4.cfg'
[export_xvid4.so] Reading config section 'cbr' from './xvid4.cfg'
[export_xvid4.so] Reading config section 'vbr' from './xvid4.cfg'
(ac3scan.c) AC3 frame 1792 (2336) bytes | bitrate 448 kBits/s | depsize 8008 | rbytes 2335.666667

[encoder.c] Delaying audio (0)
[encoder.c] Delaying audio (0)
^Ccoding frame [75], 38.44 fps, 14.4%, ETA: 0:00:11, ( 0| 0| 7)
[transcode] (sighandler) SIGINT received

clean up | frame threads | unload modules | cancel signal | internal threads | done
[transcode] encoded 82 frames (0 dropped, 0 cloned), clip length   3.42 s
%

Has anyone seen this before?

This was working last week and I don't know what happened to my setup. The other two boxes in my cluster are working fine.

Thanks