Error reading wave data, segmentation fault

Binary package hint: mjpegtools

mjpegtools 1:1.8.0-0.2ubuntu2
qdvdauthor v 0.1.3 (nov 2006).
kernel 2.6.20-2-generic (in Ubuntu 7.04)

Here is a section of the output of qdvdauthor:

[import_vob.so] tccat -i "/media/storage/video/2005-12-10_weady/2005-12-10_21-11-25.mpeg" -t vob -d
[import_vob.so] v0.6.0 (2003-10-02) (video) MPEG-2 | (audio) MPEG/AC3/PCM | (subtitle)
[export_mp2enc.so] v1.0.10 (2004-09-27) (audio) MPEG 1/2
[export_mpeg2enc.so] v1.1.10 (2003-10-30) (video) MPEG 1/2
[export_mpeg2enc.so] *** init-v *** !
[export_mp2enc.so] *** init-v *** !
[export_mpeg2enc.so] cmd=mpeg2enc -v 0 -I 0 -f 8 -F 3 -n p -a 2 -o "/tmp/qdvdauthor/2005-12-10_21-11-25/2005-12-10_21-11-25.m2v"
tc_memcpy: using sse for memcpy
tc_memcpy: using sse for memcpy
[decode_mpeg2.c] libmpeg2 0.4.0b loop decoder
[decode_mpeg2.c] libmpeg2 acceleration: mmxext
**ERROR: [mp2enc] Error reading wave data
Segmentation fault (core dumped)

...and the same message is repeated again for the next mpeg file. There are only two files so this is occurring 100% of the time.