We're committed to getting you to the finish line. So whether it's getting the program to your final broadcast outlet(s) utilizing our AberFast digital file delivery services or sending standalone files back to your team for those do-it-yourselfers - we've got you covered!

Below are some of the most common standalone files requested and how they're used, but we're certainly not limited to only these...

Broadcast Standalone Files

  • MCC (MacCaption Closed Caption)
    Contains native CEA-708/608 encoded caption data as well as OP-47 Teletext.
  • SCC (Scenarist Closed Caption)
    A universal standard used for Line 21 broadcast closed captions, web media, and DVD. It is also a preferred format for YouTube.
  • CAP (Cheetah International)
    Widely used format for hardware encoding.
  • AAF (Avid Advanced Authoring Format)
    Avid Media Composer export. Supports OP-47 Teletext.
  • Black 720x486 movie w/ CC
    Used to create line 21 black movie to add line 21 caption data in any NLE. SD only.

Web and Mobile Standalone Export Files

  • SRT (Subrip)
    Simple text, no positioning - center/bottom/center appearance. Used for online players like Facebook & YouTube.
  • VTT (WebVTT for HTML5)
    The next generation of Subrip .SRT. Contains position and style. Popular for web media players.
  • Flash DFXP (Distribution Format Exchange Profile)
    Various XML formats available for Flash video players.
  • SAMI (Synchronized Accessible Media Interchange)
    Developed by and used for Windows Media Player.

Subtitle and Open Caption Export Files

  • Alpha Channel overlay
    Any resolution video file with text over a transparent background for a simple drag and drop onto a NLE timeline. On-screen text can be made to look like captions or subtitles.
  • Adobe Encore Text
    Created for DVD and Blu-ray authoring in the Adobe suite.
  • STL (Spruce Subtitle File)
    Text file for Apple’s DVD Studio Pro. Option available for both editable text or TIFF images.


Tapes are a fading trend in the industry, but that’s how it worked for so many years so we had to be experts at it. Like riding a bicycle, we haven’t forgotten and we have a full-service, in-house production facility making your tape options endless. We also have a complete distribution center, allowing us to ship just one tape or hundreds of tapes. You'll be at ease knowing that our specially-trained recording technicians often catch costly errors before they go on air. 

"Aberdeen has proven to be fast and reliable. Their dedicated team ensures all technical aspects of closed captioning services and file transfers are executed in a timely manner."
Joel B.
Editor – Trey Johnson Ministries
Let’s get started with a customized quote tailored for your captioning needs.