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In November / December 2019 I did a two week commercial using an Alexa Mini LF shooting 4.5K ARRIRAW. With that summary in mind and the knowledge you gained from the ARRI and Codex explanations, let's dive in. I’ve found that offloads are also quicker meaning you will save on labour.
On average SSD Storage is around $300-$350 AUD per terabyte, if you can decrease the amount of SSD Storage required you will save 40% on your drive costs. This means that on average, 1TB of ARRIRAW becomes 600GB of ARRIRAW HDE, that's a massive data saving, especially over the course of a longer job. I found it to be around 35% but I have certainly seen instances of it compressing the data by 50%, calling it a 40% saving seems fair. On average, the compression offered by HDE equates a 40% data saving. They do exist as normal ARRIRAW on the camera media but they do not exist as ARRIRAW HDE, this is a seperate version of the footage that is created while offloading. Given that the HDE Compression is done while offloading the data, this means that the files do not exist until they are offloaded.
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HDE Files actually do not exist until the compression is done, just like a ZIP File doesn’t exist until the compression is done and the. HDE works like zipping a file in terms of file integrity, the ARRIRAW becomes smaller in size without any quality loss. The computer processes the data and compresses the files, meaning they become smaller in size and require less storage capacity on your hard drives (HDDs) or solid state drives (SSDs). Think of this compression in the same way that you ZIP a file on your computer. It applies compression to the ARRIRAW Recording Format, this is done on your computer while offloading, not on the camera. Rather than re-hashing all of the information that ARRI and Codex have provided, I would recommend that you take a read of their resources first before diving into this blog post.įor ARRI's explanation of HDE you can reference their FAQ and select HDE / High Density Encoding from the dropdown:įor Codex's explanation of HDE you can reference their dedicated HDE Page, the Spiderman Case Study is well worth a read:Īs a very brief summary, HDE is a new recording format introduced by ARRI and Codex in 2019. I trust it will serve as a useful tool for you. With that experience on hand, I have decided to put together this comprehensive post on all things HDE.
I've been in touch with ARRI and Codex about HDE Issues as well as liaising with Pomfort and Imagine Products about software specific problems and discrepancies.
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I've run different versions of Codex Device Manager (V5.0 and V5.1 BETA) in different versions of macOS (Mojave 10.14 and Catalina 10.15) on different computers (MacBook Pro and Custom Built 'iMac Pro' Hackintosh) with different Cameras and Codex Hardware (Alexa Mini, Alexa LF and Alexa Mini LF). I've got many HDE Jobs under my belt now, all of them TVCs ranging from bigger 16 Day TVCs to smaller two day jobs. Over the past few months I've had many inquiries about HDE and how it can be practically implemented, this includes, how do we do HDE, what needs to be enabled, is it a camera setting, what are the problems, will it work with my operating system, etc.
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Technical explanations aside, that doesn't mean people understand how to execute HDE on-set. This has been instrumental in getting Producers, Directors and DPs to utilise it for their production. I think ARRI and Codex have done a good job of putting together technical explanations of the new ARRIRAW HDE Format and how it works.
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