Hi guys,
What an absolute treat to find these restoration projects at this time of year, its like an extra Christmas present finding amazing copies of the OOT lovingly worked on to share with fans. Thank you Team Negative for all the hardwork doing this, as much as it was a labour of love i’m sure it took many painstaking hours at the computer slaving away.
Sorry if its been asked before and i’ve not picked up on it but can I please ask about the filesizes? the 4K no DNR comes in at 83.8gig, whereas the 4K DNR version is a mear 48.3gig just 5.7gig bigger than the 1080p DNR version…it just seemed like you managed to get the 4K DNR version much smaller in comparison?
Thanks for any reply and again I take my hat off for all the hard work!
…I also chipped in a little drink as a sign of appreciation…Cheers!
Asked and answered earlier in the thread, but here it is again:
Yes this was intentional for three reasons:
- The noDNR version had a lot of noise and grain so it needed a higher bitrate to preserve it. The DNR version is not as complex so it doesn’t need that high of a bitrate.
- A LOT of people had real trouble playing back the 80+ GB noDNR version.
- The noDNR version was encoded with a specific target bitrate (80 Mb/s), which was probably higher than it needed to be to achieve the desired quality. Therefore when encoding the DNR version I used a target quality (CRF 16) instead, and this resulted in the smaller file.
Conversely, the 1080p DNR version is bigger than the No DNR version for similar reasons: the noDNR version was encoded using quality based settings, while this one was encoded using a CBR of 40 MB/s for maximum quality - filesize didn’t seem so important here because whether it was 30 GB or 40 GB it was still going to need a DL BD 50 so why not make it maximum quality?