How to UnECM Files

Why ECM? Well the ECM compression removes a lot of specific data that can be re-added later, by doing this your ECM'd file will be substantially smaller. This helps in a few ways, 1. The file is smaller thus will download in a shorter amount of time, 2. The file is smaller thus quicker to upload, and lastly 3. It saves considerable amount of space on the server's hard drives and saves a good amount of bandwidth. It's a no-brainer way to save time and space!

This process will guide you on how to UnECM any files you come across. I have also included screenshots from my computer to help you out. In this demo, we are using ECM Tool with Final Fantasy VII Disc 3 zipped. I've also included another tool you can download, Pakk ISO, which automates everything. If you fail to figure this out, download that and you should be good to go!

Downloads

ECM Tool [Download] or Pakk ISO [Download]

Step by Step Guide

Step 1

Have the unECM.exe and the ROM (the ECM file or the ZIP, here we are using a ZIPPED File) in the same folder. Right-click the ROM. Click open with WinZip (see screenshots).

Step 2

WinZip should now be open. Left-click the ROM to Drag n' Drop into the folder. An extraction window will open (see screenshots).

Step 3

Next, left-click the extracted ROM and Drag n' Drop it into the UnECM.exe. A window prompt may pop up, if it does Click Run (I'm using Windows XP, Vista/7 may say "Allow", see screenshots).

Step 4

A Command Prompt (Black Window) will appear. At the bottom, it will shows Decoding: Pecent%, when it reaches 100% the window will disappear and your file will be created (see screenshots).
That's it! If everything worked, congratulations. You now have a playable ROM. Wooo hooo!

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