Re: HTF Blu Ray Review: Miami Vice - Unrated Director's Edition
Thanks to Kevin for reviving this thread. It made it easier to find

.
Earlier in the thread, Sam mentioned he is using a 720p projector. I half seriously posted that if he wanted someone to compare the upcoming Blu-ray to the HD DVD on a 1080p rig to send me the disc and I'd be happy to oblige. Sam decided to take me up on that and indulged me by sending me his review copy BD to look at. Now I have to dust off the old "Obi" hat and write something up.
For reference, this subjective comparison was done at normal play on a system consisting of a calibrated Sony VPL-VW60 (Black Pearl) fed by a LG BH200 combo player through a Denon AVR-4308CI receiver. Both discs playback at 1080/24p. Both discs send native bitstream audio to the Denon for decoding. Same projector, same player, same audio receiver, same HDMI cables. I think this is about as level a playing field as one will get in a home theater environment. With that preface....
I consider the Blu-ray and HD DVD editions of
Miami Vice to be equal in terms of video and audio quality from a practical perspective. Kevin's minor incidence of "strobing" aside, I could not find a single example where the increased bit rate of the Blu-ray encode provided any visible improvement in video quality. As has been pointed out often enough, this is very difficult film to encode on the video side and, frankly, I expected there to be some improvement at least in the shots that exhibit the heaviest grain. This is simply not the case. The VC-1 codec (not to mention the compressionist) proves itself admirably on the HD DVD encode of this film.
But what about the audio? Surely the lossless DTS-HD MA on the Blu-ray is better than the "lossy" Dolby Digital Plus track on the HD DVD? Uh, no.
The DD+ track on the HD DVD is of the 1.5 mb/s variety with the usual -4dB Dialnorm applied. The DTS Master track on the BD has no Dialnorm applied. I verified the 4 dB level difference in several passages and after compensating with that fancy gadget called the volume knob, I could not detect any audible difference between the two tracks.
Hey, I like lossless audio as much as anyone. It makes me feel better to know I'm getting an exact duplicate of the master audio when I see that "TrueHD" or "DTS-HD Master" light up on my receiver. But, even though I might try to kid you, I'd never try to kid myself. In every instance that I've compared high bit rate lossy encoded audio to the same material in either uncompressed PCM or lossless compression, there just isn't any audible difference. The DD+ track on
Miami Vice sounds just as good as the DTS Master track. Just turn it up a little more.
Lastly, thanks for sending the disc, Sam. You saved me the price of this Blu-ray as it was on my "buy" list. I'll get it back to you shortly.
EDIT:
I want to point out that my comments on comparing lossy and lossless audio above should not be confused with the issue of comparing in-player decoding with sending native bitstream to a receiver or processor for decoding. Different things, and I have some controversial thoughts on that as well, but another time and another thread for that.