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EpicRewind, video capture software for PC games using a RAM RollingBuffer for instant-replay functionality

video capture pc software EpicRewind

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#1 Zugdar

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Posted 24 April 2013 - 10:57 PM

Hi everyone, I've been working on some video capture software which WoW PVPers may find handy. Back when I was playing WoW and arenas it seemed like all the cool stuff worth sharing in a video happened at completly unexpected times...thus the motivation to build this tool:

EpicRewind is video capture software that has a key differentiating feature: RAM RollingBuffer mode. This works like an on-demand instant-replay: a game is hooked and the video is continuously buffered in system RAM, when something cool happens the user can save the buffer contents with the press of a hotkey. So rather than saving video from your entire gaming session you can just save the good stuff after it actually happens. In addition, EpicRewind provides some nice performance benefits over traditional capture software: video processing, encoding and writing to disk only happen when you choose to save a video clip. During video buffering, the contents of the framebuffer are just being copied to system memory X times per second based your specified capture FPS.

Key advantages of the RAM RollingBuffer:
  • You don't need to pre-plan a gaming video, you can just play the game without thinking of the video at all. If something interesting happens you can always choose to save it after it's happened.
  • Ideal for MMOs and Multiplayer games where 99% of the gameplay isn't worth sharing and the interesting stuff can happen at unexpected times.
Added benefits:
  • One of the best benefits is that it saves you time by eliminating the need to dig through all your saved gameplay footage to find the good stuff.
  • Saves disk space by not writing countless hours of video to disk your just going to throw away later after you dig out the highlights.
  • More efficient use of system resources by not processing and encoding video the entire time your gaming.
You can find more information about EpicRewind here on our website along with some demonstration videos:


We are at the point now where we have a usable beta build and are looking for more folks to try it out. If this sounds interesting to you feel free to send me a PM and I’ll get you signed up, alternatively you can also email me at:

[email protected]

If you really like the idea, we've just launched a Kickstarter for the project here:


Anyway, thanks for reading!

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#2 Pharaun

  • LocationSeattle, WA

Posted 25 April 2013 - 01:58 AM

Huh, any plans for 64 bit address space? RAM is dirt cheap right now, so it's pretty easy to get a system with >16GB.

Also, when you're dumping the buffer to disk, does it continue to buffer new stuff?
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#3 Zugdar

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Posted 25 April 2013 - 01:09 PM

Yeah, a 64-bit client and support for hooking 64-bit game clients is in the works, currently we just have a 32-bit client.

And yes the video capture continues while the buffer is being written to disk. So for example, if someone hit the save buffer hotkey every minute in a 5 minute interval the resulting 1 minute output videos could be stitched together to represent the entire 5 minute interval.
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#4 Zugdar

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Posted 25 August 2013 - 05:47 PM

Now available for public download, the lite version is free:


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#5 Namechangex

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Posted 03 September 2013 - 06:39 PM

I like :)
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