Sorts of 3DO Files

Leading 3DO Type

.3DO

File Ext:	.3do
File Type:	FreeDO Phoenix ISO Image

The file extension, used by FreeDO, contains ISO image having the video game for 3DO console.

Created by:	Open Source
Function:	Disk Image Files
Subkey:	HKEY_CLASSES_ROOT\.3do

Software Programs That Open The FreeDO Phoenix ISO Image:

FreeDO by Open Source

Windows

Mac

Additional 3DO Files

.3DO

File Ext:	.3do
File Type:	Total Annihilation Object

The file stores in-game objects models for Total Annihilation, a Microsoft Windows and Mac video game developed by Cavedog Entertainment.

Created by:	Cavedog
Function:	Game Files

Software Programs That Open Total Annihilation Object Files:

Total Annihilation by Cavedog

Compatible with:

Windows

Mac

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Troubleshooting Problems Opening 3DO Files

Common 3DO Opening Problems

FreeDO Disappeared

If you attempt to load your 3DO file, you experience a message such as "Can't Open 3DO Files". When this happens, it is commonly due to FreeDO missing in %%os%%. Because your operating system doesn't know what to do with this file, you won't be able to open it by double-clicking.

Tip: Another 3DO-related program can be selected to open the file by clicking "Show Apps" and finding the application.

FreeDO is Out-of-Date

Sometimes your installed version of FreeDO won't support your FreeDO Phoenix ISO Image file. Installing the latest version of FreeDO from Open Source is recommended. Your FreeDO Phoenix ISO Image file was probably created by a newer release of FreeDO than what's currently installed your computer.

Tip: Right-clicking on your 3DO, then clicking "Properties" (Windows) or "Get Info" (Mac), can provide clues about your file version.

Ultimately, most of the difficulties opening 3DO files are due to having the wrong version of FreeDO installed.

Additional 3DO Opening Issues

Even with the correct version of FreeDO installed, you can still experience difficulties opening 3DOs. There can be other issues - unrelated to software - preventing you from opening 3DO files. These issues include:

• Corrupt Windows Registry file path references for 3DO
• Accidental deletion of the description of the 3DO file in the Windows registry
• Partial installation of FreeDO that did not fully complete
• Your 3DO file is corrupted (issues with your FreeDO Phoenix ISO Image file itself)
• Past or present virus infection has affected your 3DO
• Device drivers of the hardware associated with your 3DO file are corrupt or out-of-date
• Too many applications are open on your PC to load your FreeDO Phoenix ISO Image file successfully