Transferring huge Data faster

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art_intermedia

  • Posts: 2
  • Joined: Sat Jun 19, 2021 10:23 am
  • Real Name: Roman Koese

Transferring huge Data faster

PostSat Jun 19, 2021 10:32 am

Hello there fellow filmmakers,

I was wondering about data transaction speed.
Working on a HDD internal and USB 3.0.
Yesterday I had a film shooting using 4.6K lossless, which created DNG files.

Since I normally do not use this high information codec, I was wondering why the transferring speed is pretty low at 10-20 Mb/s?

Whenever I shoot, I know it takes time, but half an hour or something for each of my 256MB Cfcards...

This one takes about 4-5 hours for 256MB. I know HDDs are way slower than SSD, but that slow? It sometimes drops to 5-10MB...

Right now I am using a SanDisk CFast-Reader, USB 3.0, and the internal HDD...

Any Ideas? I am open and thankful for any tips, suggestions, to maybe reduce the amount of time for this part of the postproduction workflow, how do you guys transfer a high amount of data?

I will turn them into proxy footage I guess since I never used this lossless codec and I am not sure how the editing will be, since I cannot see any video files, but the DNG-files, which I hope Resolve 17 will put together...

Thank you in advance, I am new to the Blackmagic world and glad to be here, have a nice day,
Roman from Cologne/Germany
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Uli Plank

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Re: Transferring huge Data faster

PostTue Jun 22, 2021 1:09 am

Get an internal SSD, preferably a NVMe if your motherboard supports it. And then, a reader with USB-C should be faster too. Do you really nee to work with DNG? They are pretty heavy.
Don't approach Resolve with your expectations from other NLEs! They are all different.
Resolve Studio 17.2.2 and Fusion Studio 17.2.1, macOS 11.4
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Jack Fairley

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Re: Transferring huge Data faster

PostTue Jun 22, 2021 3:34 am

DNG is recorded as a file per frame, which is much slower to deal with than a sequential read/write for single file codecs. In Resolve, they will appear as a single video clip per folder of DNG files.
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