Hi @treego, have you tried to install the "Media Feature Pack for Windows 7", which I mentioned in my previous comment, here?
Perhaps the problem in your case is as follows: the WMP is already installed in your Windows, but its installation does not include the multimedia libraries, which are used by Opera to replay videos using the H.264 codec?

I tried that update, but I got this message after downloading it and attempting to install it, "This update is not applicable to your computer."

Perhaps the problem in your case is as follows: the WMP is already installed in your Windows, but its installation does not include the multimedia libraries, which are used by Opera to replay videos using the H.264 codec?

Another video that does not play in Opera here on Win 7 32-bit that plays just fine in Firefox, Pale Moon, Slimjet, Google Chrome, etc. http://www.westernjournalism.com/watch-krauthammer-just-gave-trump-the-perfect-nickname-and-his-opponents-will-hate-it/

Plays here O31, Win 7, treego

I am glad to hear it is working for you. I have Windows 7 Starter; I guess Opera just doesn't play videos well with this OS. After months here in the forums and blogs' comments section and just recently addressing it with @opera on Twitter, nobody has a cure, it seems. That's too bad.

31.0.1889.99 is bad news, as even more configurability has now been removed. Opera has been gradually stripping away all that made Opera different and better. The last straw for me, is that I can't live without the ability to change the size of my speed dial icons. So I'm reverting to an older version until that facility is included. Either that or I'll have to start looking into other browsers.

Another video that does not play in Opera here on Win 7 32-bit that plays just fine in Firefox, Pale Moon, Slimjet, Google Chrome, etc. http://www.westernjournalism.com/watch-krauthammer-just-gave-trump-the-perfect-nickname-and-his-opponents-will-hate-it/

Plays here O31, Win 7, treego

Hi @treego, maybe this tip will help you to fix the problem in your case: "If you have one of the special regional N/K/KN versions then use this link WMP for N-K-KN editions - download Media Feature Pack - Microsoft Download Center" - the source link.

I have no idea what you mean by "N/K/KN versions." If you could help explain that a little more, I can confirm one way or the other on that. Thank you.

The change log, and the announcement: "Opera 31 speeds up".

"The most import change we’re introducing in Opera 31 is its startup time. Opera for computers now starts up to 70% faster in comparison to previous versions. This is especially important and helpful for devices with slower, traditional hard drives.

Discover gets a makeover

We redesigned pages in Opera for computers so everything looks nice and modern. In Opera 31, Discover gets a better layout. Discover is a feature that serves you the most recent content from your region. You can also customize it by choosing topic category or country.

Tip: One of our favourite categories is Gaming. Follow it and you will never miss the hottest premiere or rebirth of a classic.

and more…

We are working on improved synchronization, with additional options, across your devices. This release synchronizes typed history between your desktop devices. Now you can get to your history faster."

\m/ :cheers:

Hi Opera. Thanks for the update here. Do you have any idea when videos like this one will be playable on Windows 7, 32-bit systems? Thank you, again. http://shoebat.com/2015/06/03/breaking-cnn-reports-pamela-geller-target-of-beheading-attack-then-asks-her-if-she-relishes-being-the-target/
Other browsers on my system that play this video with no hitches at all are Vivaldi, Chrome, Firefox, PaleMoon, and Internet Explorer. None of the most recent versions of Opera (that includes Stable, Beta, and Developer) play this video or others like it. Why not? I've been asking this question for 4 weeks now with no answer.
If I right-click on the video display image at this website and click on "View frame source" and examine the source code, I do find this link which does play fine in Opera when I copy and paste this link into another tab: https://d2ha22j8ys3e0o.cloudfront.net/vmplayer/player.swf?video_id=2421779&domain=vid.me&c=598-1-9-4 ... hopefully, somebody can troubleshoot this.

It's July 24, 2015 and these issues remain unresolved in fully updated Opera Stable, Beta, and Developer for my Windows 7 32-bit system.

The H.264/MP4 video at http://www.quirksmode.org/html5/tests/video.html does not play here in any of the current Opera branches available on my Windows 7 32-bit system, either.
I'm hoping one day that Opera's issues with such videos will be resolved. I really want to use Opera exclusively but have to fall back to other browsers which have no such issues all too commonly.

It's August 3 and above video problems still exist. I encountered another video that plays fine in all browsers except Opera here also today: http://shoebat.com/2015/08/03/another-marine-has-just-been-murdered-in-tennessee-by-a-follower-of-the-antichrist-this-evil-needs-to-be-destroyed/

"Yet another (hopefully last) update for beta stream. It has updated Chromium to version 44.0.2403.107 and some other fixes, along with a fix for a nasty crash, that was spotted by some of you (kudos to Vux777 and jho!)."

\m/ :cheers:

Hi Opera. Thanks for the update here. Do you have any idea when videos like this one will be playable on Windows 7, 32-bit systems? Thank you, again. http://shoebat.com/2015/06/03/breaking-cnn-reports-pamela-geller-target-of-beheading-attack-then-asks-her-if-she-relishes-being-the-target/
Other browsers on my system that play this video with no hitches at all are Vivaldi, Chrome, Firefox, PaleMoon, and Internet Explorer. None of the most recent versions of Opera (that includes Stable, Beta, and Developer) play this video or others like it. Why not? I've been asking this question for 4 weeks now with no answer.
If I right-click on the video display image at this website and click on "View frame source" and examine the source code, I do find this link which does play fine in Opera when I copy and paste this link into another tab: https://d2ha22j8ys3e0o.cloudfront.net/vmplayer/player.swf?video_id=2421779&domain=vid.me&c=598-1-9-4 ... hopefully, somebody can troubleshoot this.

It's July 24, 2015 and these issues remain unresolved in fully updated Opera Stable, Beta, and Developer for my Windows 7 32-bit system.

The H.264/MP4 video at http://www.quirksmode.org/html5/tests/video.html does not play here in any of the current Opera branches available on my Windows 7 32-bit system, either.

I'm hoping one day that Opera's issues with such videos will be resolved. I really want to use Opera exclusively but have to fall back to other browsers which have no such issues all too commonly.

The change log, and the announcement.

"We are getting closer to releasing Opera 31 as a stable build, but before that we wanted to give you another beta build, to ensure that everything is OK. There were two Chromium updates since the last beta build, and the current version is 44.0.2403.89. This build also has two crashes fixed, updated translations and some other improvements/bug fixes. For the detailed list of changes, check our changelog."

\m/ :cheers:

\m/ :cheers: