[Solved]Opera does not play videos (not flash, I think html5) like on twitter or many other pages
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marseipan last edited byThere only appears a message: "This video could not be played" (translated) 
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A Former User last edited byInteresting, Steve. A couple of sites say the same with browsers equipped with blockers. 
 Sniffing at such blockers started recently on a few video services.On some, disabling (for the page), loading the element then enabling back again helps. On others, sniffing persists. 
 Disabling the blocker altogether endangers the computer, let alone overloading CPU.When no disabling, I noticed the extensions poised to help download media will still locate the file(s) and will eventually download them if needed. I have a simple guy in tuxedo in Opera, and more than one exts in Firefox. Third browser I use does play those videos not having any exts or blockers. 
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marseipan last edited byTry disabling the ad-blocker on that page and see if it helps. It does not help, even in private mode, when all plugins should be disabled, it doesn't work. 
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marseipan last edited byI moved "%appdata%\Opera Software" and also installed opera beta, same problem...!?! Why doesn't it work? The message is: The media could not be played.Here are some system information: Opera: Opera bewerten 
 VersionsinformationVersion: 46.0.0.259726201 (PGO) - Opera ist auf dem neuesten Stand 
 Update-Stream: Stable
 Betriebssystem: Windows 7 64-bit
 Browser-IdentifikationMozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.86 Safari/537.36 OPR/46.0.0.259726201 (Edition EXP154) Pfade Installations-Verzeichnis: C:\Program Files\Opera 
 Profil-Verzeichnis: C:\Users\martin\AppData\Roaming\Opera Software\Opera Stable
 Cache-Verzeichnis: C:\Users\martin\AppData\Local\Opera Software\Opera StableOperating System Betriebssystemname Microsoft Windows 7 Professional N 
 Version 6.1.7601 Service Pack 1 Build 7601
 Zusätzliche Betriebssystembeschreibung Nicht verfügbar
 Betriebssystemhersteller Microsoft Corporation
 Systemname MARTIN-LAPTOP
 Systemhersteller LENOVO
 Systemmodell 20267
 Systemtyp x64-basierter PC
 Prozessor Intel(R) Core(TM) i5-4210U CPU @ 1.70GHz, 2401 MHz, 2 Kern(e), 4 logische(r) Prozessor(en)
 BIOS-Version/-Datum LENOVO 7CCN62WW, 13.11.2014
 SMBIOS-Version 2.8
 Windows-Verzeichnis C:\Windows
 Systemverzeichnis C:\Windows\system32
 Startgerät \Device\HarddiskVolume1
 Gebietsschema Deutschland
 Hardwareabstraktionsebene Version = "6.1.7601.17514"
 Benutzername MARTIN-LAPTOP\martin
 Zeitzone Mitteleuropäische Sommerzeit
 Installierter physikalischer Speicher (RAM) 4,00 GB
 Gesamter realer Speicher 3,93 GB
 Verfügbarer realer Speicher 1,14 GB
 Gesamter virtueller Speicher 7,86 GB
 Verfügbarer virtueller Speicher 4,39 GB
 Größe der Auslagerungsdatei 3,93 GB
 Auslagerungsdatei C:\pagefile.sys
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marseipan last edited byVideo codecs MPEG-4 ASP support No ✘ H.264 support No ✘ H.265 support No ✘ Ogg Theora support Yes ✔ WebM with VP8 support Yes ✔ WebM with VP9 support Yes ✔
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A Former User last edited byH.264 support No ✘ I have the same issue too. 
 I am using Opera on Windows XP, Opera 36.0.2130.80.Twitter has n't been working me for a long time. VLC media player is listed as on the plug-in. Tried turning it on and off.... 
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marseipan last edited bywhere can we find the codec? (didn't find anything on google for installation) I think on my system it doesn't work because I have Win 7 64 Bit N (N = no Windows Media Player) 
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leocg Moderator Volunteer last edited byI think on my system it doesn't work because I have Win 7 64 Bit N (N = no Windows Media Player) Try installing the media pack, it may help. where can we find the codec? Opera can only play h264 if your OS can do it natively so installing the codec probably will not help.