3 Reasons to Send Proxy Files With MASV File Transfer

by Jim Donnelly | April 22, 2022

Most post-production specialists who work with large files have used video proxy files at one time or another. Because RAW video files shot in high resolution are huge and unwieldy, most video pros transcode lower-resolution copies of that RAW footage to serve as proxies for offline editing and related post work.

Many pros also choose to send proxy files using a cloud file transfer solution while the original media is shoved into a box and shipped over on a hard drive.

For example, it’s far quicker (and easier) for a video editor to begin editing with proxy media. They can relink the original files later, rather than wait on the camera footage to arrive.

But, sharing proxies isn’t as simple as uploading files onto WeTransfer and hitting send. A proper proxy workflow requires three things from a file transfer solution:

  • Ability to send large files: Despite being low-res media, proxy files are still heavy. Make sure your file transfer tool can comfortably send a large number of gigabytes from your computer.
  • Fast, reliable delivery: Again, your team is waiting on proxies to begin their work. Your proxy clips need to arrive fast and without any hiccups (corrupted files, missing links, etc.).
  • Proper folder maintenance: By far the most important element when sending proxies — maintaining folder structure. Proxy files are copies of camera originals and hence, they need identical folder structures to link media properly.

And that’s where MASV comes in. Call us biased, but we think MASV is the best way to transfer any video file, of any size and type, to anyone, in any region. Ever.

But it’s especially well suited to send proxy files. Here are three reasons why.

Table of Contents:

Need to Send Proxy Files?

Use MASV to share large files and entire folder structures with your team.

Refresher: How to Create Video Proxies

Many non-linear editing platforms such as Premiere Pro and Final Cut Pro X now have the power to handle 4K, 6K, or 8K RAW files. But you also need uber-fast workstations and storage to add effects, grade color, or make cuts productively.

Most consumer-grade machines don’t have the core count or memory volume for that.

Without proxies, video editors and other post specialists in these situations face extremely laggy video, dropped frames, long processing times, and – maybe worst of all – a building sense of frustration and annoyance.

Depending on the platform, there are several ways to create proxies (also sometimes known as “optimized files”) for post work. Offline editors can create proxies using Avid Media Composer, Final Cut Pro, DaVinci Resolve, and other software.

Creating proxies using Premiere Pro is another relatively simple process done in the project panel. Here’s how:

  1. Select the desired items to be proxied in the project panel
  2. Select ‘Create Proxies’ from the context menu
  3. In the Create Proxies dialog box, select one of Adobe’s built-in transcoding presets (i.e. 1024×540 H.264) or add your own preset via the ‘Add Ingest Preset’ button
  4. Click OK in the dialog box

Offline proxies attached to each corresponding project item are then created in Adobe Media Encoder, with any edits made to proxy files automatically applied to full project items. To ensure proxy files automatically display in your timeline, select ‘Enable Proxies’ in preferences — add the toggle proxies button to your playback bar.

You can read our full breakdown of how to create video proxies in Adobe Premiere Pro, here.

Deliver 4K+ Footage

MASV can send up to 5 TB with a single file.

#1: MASV’s TCP-based Transfers Guarantee Intact Folder Structure

MASV is a Transmission Control Protocol (TCP)-based large file transfer platform. TCP relies on three-way handshake connections, which ensure data transfer only begins when the target machine has acknowledged a successful connection. This, in turn, ensures transferred data is received successfully, without errors or glitches, and in the correct order.

That’s a fundamental difference between TCP and User Datagram Protocol (UDP)-based data transfer, which doesn’t guarantee data integrity. TCP-based transfers also don’t require firewall reconfigurations or other technical tweaks.

MASV’s TCP-based transfers guarantee file and folder trees arrive in the same structure as they were sent…but why does this matter?

The Importance of Strict Proxy Folder Structure

Media files inside of a proxy folder

@fauzi20art via Twenty20

Strict and systematic folder and file organization is crucial for efficient online and offline video editing. To keep large projects organized, many video editors start with an overall project folder, then populate it with separate subdirectories for video, audio, and project files.

Because proxies are closely linked to project files, their file structures must be identical – even when transferred to other users. Keeping proxy folder structures intact ensures that when remote editors or colorists work on proxies, those updates are automatically applied when the project file owner reopens the originals.

Unfortunately, many large file transfer solutions don’t preserve folder structures fully intact. And that’s just one reason why MASV is so appropriate for sending proxies to editors, colorists, clients, and other stakeholders.

And that’s not all.

Since MASV maintains the integrity of folder trees, it is recommended that you don’t zip files prior to upload. File zipping is a big reason why many transferred ZIP folders reveal corrupted files inside. The probability of corruption increases the larger the file sizes are.

#2: MASV Has Virtually No File Size Limits

A video editor color grades footage

@sutipond_somnam via Twenty20

Proxies are usually much smaller than their originals – especially when RAW high-resolution footage is involved – but not always. Source footage in Premiere Pro that’s already compressed will, for example, result in larger proxy file sizes. The tradeoff is that the proxies are less compressed and much faster to decompress/run inside the editing platform.

That means sending proxies to partners or clients can sometimes take up just as much or even more transfer bandwidth than your originals.

And even if your proxy files are much smaller than the original raw footage, it doesn’t mean they’re featherweights. Multiple proxy files can add up quickly and result in immense folder structures.

Luckily, MASV has no file package size limits and can send individual files of up to 5TB in size.

Read More: How Apache’s color & finish post house delivers terabytes every day with MASV

Send Large Files. Fast.

MASV sends files at max speed to over 150 data centres around the world.

#3: MASV Rides a Dedicated, Global-Accelerated Network

Speed and reliability are crucial when transferring video files on deadline, especially when dealing with heavy files that could take days to transfer, fail outright, or be too large to send using platforms like Dropbox or Google Drive.

That’s why MASV rides an accelerated global network with more than 150 servers worldwide. Because you’re never very far from one of our servers, most transfers only travel a short distance before they’re riding our accelerated network – for the fastest proxy file transfer speeds, anywhere, without installing software or plugins.

Pairing this accelerated global network with our desktop app can result in even better speed and reliability because it removes any issues at the web browser level. Even in the case of network outages, computer restarts, or unstable connections, the MASV app recovers or proxy file transfers automatically.

Need even faster file transfers? Combine multiple internet connections and boost your transfer speeds with MASV Multiconnect. ⚡️

Send Proxy Files (And Anything Else) With MASV

Use MASV to send proxy files

MASV’s TCP-based transfers ensure that your original or proxy folder structures are always intact, leading to more efficient transfers and better data management. Our lack of file size limits means you can even send source footage along with your proxies in one go with no worries about slow or failed transfers.

Want to give it a shot on your next proxy file transfer? Sign up and send 100GB’s worth of transfer bandwidth for free. Once you’re signed up, you can send even more large file types like digital cinema packages or DPX files (just to name a few).

MASV File Transfer

Get 100 GB to use with the fastest, large file transfer service available today, MASV.