True; some people say DTS is superior because it's 768kbps compared to AC3 at 448kbps, when in fact it's the actual sound mix that's better. I don't know much about the specs for DTS on laserdisc. In theory laserdisc AC3 at 384kbps is lower quality than DVD AC3 at 448kbps but as stated above this is not always the case.