I was able to backup this DVD using 18.104.22.168 and 22.214.171.124. The files and file sizes on the HDD and diskette are the same. The video portion plays fine from the HDD but I get no audio and there isn't even an audio tab shown in PowerDVD configuration while movie is playing. I get no error messages. If I play the movie from the diskette, both audio and video play fine. PowerDVD 7.3.3104a.1/onboard audio to optical SPDIF/nvidia 8600gts/163.69/1080-50p/vista ultimate/4GB RAM/AMD 62FX (dual core 2.81 MHz) Any suggestions?