Upscaling media - how ?

karltimber

Hi,

not sure where this should go - but since ye are all knowledgeable

How do studios/film co's covert a dvd movie - say Dances with Wolves - to a blu-ray version. Do they use software the same as an upscaler dvd-player ?
Was the film shot in blu-ray format initially but dumbed down for dvd ?

any info would be great - can't find anyhting on wiki.

also - is DTS sound better than AC3 - the same - with ref to playing thru a 5.1 amp ?

thanks
k

Idleater

karltimber wrote: »

How do studios/film co's covert a dvd movie - say Dances with Wolves - to a blu-ray version. Do they use software the same as an upscaler dvd-player ?
Was the film shot in blu-ray format initially but dumbed down for dvd ?

Basically yes.

there are plenty of encoding mechanisms each of which employ more or less compression than others resulting in more or less processing to restore the picture.

generally, I believe, the original films are done in 4096k resolution for example (which is 4x as big as 1080p) so in order to remaster to dvd or bluray, the original negatives are restored (depending on the quality of them) and new images are taken digitally.

If you want a good insight into this, there is a cool "making of" on some of the old James Bond reissued as blu-rays.

This involved a lot of time, effort and processing to the original negatives, and the resulting BR is of better quality than the original (according to the studio)

As to your other question, Are you referring to soundtracks on dvds or software rips of dvd's?

In general, DTS provide stricter controls on what is acceptable compression and sound clipping than Dolby Digital which results in DTS tracks in general sounding better. The down side, is that DTS takes up more space on dvd's so there is less room for "extras" which tend to sell dvd's more than "dts" which is going to be lost on 99% of "home cinema"s.

If you want to progress this to a discussion of the new HD audio formats (DTS HD, DTS MA, TRUE-HD etc) then let us know, but these are basically "all the same" now just different encodings and different ways of building up the extra quality (i.e. DTS uses plain dts and adds extra components if your system can decode them where as the DD varients are more "all in one" codecs)

GigaByte

karltimber wrote: »

How do studios/film co's covert a dvd movie - say Dances with Wolves - to a blu-ray version. Do they use software the same as an upscaler dvd-player ?

They don't convert a DVD to a Blu Ray movie. Most movies are shot in 35mm film which has far more detail than a Blu Ray movie can show, which has far more detail than a DVD can show

35MM > Blu Ray > DVD > VHS

So when making a DVD version of the movie the studio would go
35MM > DVD
and when making a Blu Ray version the studio would go
35MM > Blu Ray

GigaByte

karltimber wrote: »

also - is DTS sound better than AC3 - the same - with ref to playing thru a 5.1 amp ?

thanks
k

it should be