Click here to go to the first RED TEAM post in this thread.   Thread: Red-RAM for Epic-X: The conundrum.

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  #11 Media for EPIC 
    Red Team Stuart English's Avatar
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    do you have any thoughts regarding the RAM? Could it take the high data rate that we're expecting from the Epic?
    There are good reasons why we are developing "new media" options.... as EPIC can do unprecedented combinations of frame rate and resolution the existing 16GB CF, RED-DRIVE and RED-RAM media will take you far, but not the whole way.
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  2. #12  
    Senior Member Michael Hastings's Avatar
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    Stuart: is there any good reason you couldn't make an epic module to take a 2.5" SSD like this cinedeck?

    The sata connectors are reasonably robust, maybe as much or more so than a CF card.
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  3. #13  
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    Quote Originally Posted by Stuart English View Post
    There are good reasons why we are developing "new media" options.... as EPIC can do unprecedented combinations of frame rate and resolution the existing 16GB CF, RED-DRIVE and RED-RAM media will take you far, but not the whole way.
    Cryptic Red responses! gotta love them....

    I believe that answers my question, though. Thanks Stuart!
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  #14  
    Red Team Deanan's Avatar
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    Quote Originally Posted by Michael Hastings View Post
    Stuart: is there any good reason you couldn't make an epic module to take a 2.5" SSD like this cinedeck?

    The sata connectors are reasonably robust, maybe as much or more so than a CF card.
    Sata connectors are by spec rated at 50 insertion cycles.

    Some sata connectors go up to 250-500 cycles, but while you can control that on the receiving side, you can't control that on the drive side.

    By comparison, CF is rated at 10000 cycles.
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  5. #15  
    Quote Originally Posted by Stuart English View Post
    There are good reasons why we are developing "new media" options.... as EPIC can do unprecedented combinations of frame rate and resolution the existing 16GB CF, RED-DRIVE and RED-RAM media will take you far, but not the whole way.
    With Epic's high bitrates, I hope you guys can come up with a more affordable storage solution. If 250/225 MB/s is an overkill, and let's say around 120MB/s is used, if I'm not mistaken with current solution it would take $9000 for a ~36 min. of recording time - which is not enough for a painless workflow.

    I definitely don't want to underestimate the cost of r&d and parts or your effort. This is my major concern regarding Epic, because additional five figures for storage might be too much for us and I'm guessing for many others as well.
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  6. #16  
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    If I am not mistaken, there were plans for scaled down (rather than cropped) recording modes at high frame rates. This feature could address your storage speed at high frame rates.
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  7. #17  
    I was talking about high bitrates at 24/25 fps. Maybe I should have been more specific. :)
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  #18 REDCODE RAW codec 
    Red Team Stuart English's Avatar
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    I was talking about high bitrates at 24/25 fps. Maybe I should have been more specific. :)
    Something to bear in mind when estimating media costs; unlike most video codecs used for recording, REDCODE RAW is a variable bit rate codec so there can be considerable difference between the PEAK and AVERAGE data rate.

    As an example you could have a very complex scene that needs 80MB/s, but then the balance of shots only need between 30MB/s and 40MB/s.
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  9. #19  
    Moderator Martin Weiss's Avatar
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    Stuart, does that mean that on a non-complex scene, there isn¨t a difference between RC28, 36 and 42?
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  10. #20  
    Quote Originally Posted by Stuart English View Post
    Something to bear in mind when estimating media costs; unlike most video codecs used for recording, REDCODE RAW is a variable bit rate codec so there can be considerable difference between the PEAK and AVERAGE data rate.

    As an example you could have a very complex scene that needs 80MB/s, but then the balance of shots only need between 30MB/s and 40MB/s.
    Thanks Stuart. I fully understand about the VBR part, I'm just hoping that switching from average 1:10 Redcode to average 1:5 Redcode (for example) won't be a drastic step in storage cost.
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