[spidergawd]

Thanks, that does make sense as there were 4 audio tracks per disc. Since I'm still using 1900's stereo equipment, I may ditch the 2 multi-channel audio sources and try to author a 2 track dvd for my own use, rather than invest in a Blu-ray burner or keep these huge files on SSD. My mistake for jumping on something juicy without studying the specs, thought an HD video would a good reason to upgrade the system.