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• ffmpeg: create a video from images

  - by vailen

  Is it possible to use ffmpeg create a video from a set of sequences, where the number does not start from zero? For example, I have some images [test_100.jpg, test_101.jpg, test_102.jpg, ..., test_200.jpg], and I want to convert them to a video. I tried the following command, but it didn't work (it seems the number should start from zero): ffmpeg -i test_%d.jpg -vcodec mpeg4 test.avi Any advise?

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• flash video player doesn't display in IE

  - by Patrick

  hi, I cannot see flash video player in IE in this website: www.donatellabernardi.ch/drupal It works in other browsers: For example click on the article 'Test Jacques' and scroll down, you'll see an empty space instead of the video. thanks

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• Netflix continue sa transition de Silverlight vers HTML5, Safari dans OS X Yosemite permet de lire le streaming vidéo sans plugin

  Netflix continue sa transition de Silverlight vers HTML5 Safari dans OS X Yosemite permet de lire le streaming vidéo sans pluginUtilisant depuis plusieurs années Silverlight de Microsoft pour offrir le streaming vidéo pour les navigateurs Web sur PC et Mac, Netflix, le géant américain de la vidéo à la demande et du streaming sur Internet, avait annoncé il y a un an son intention d'abandonner Silverlight pour le HTML5.La société avait été freinée dans son élan par le manque de support de la lecture...

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• how to recognize video codec of a file with ffmpeg

  - by GerryMulligan

  I have often problems reading AVI file with my TV dvd player if they are not divx or xvid (DX50,i.e., is not readable). I'd like to make a fast script to recognize the video codec of these files before burn it on cdrom/dvd. The command : ffmpeg -i file.avi give the "container" of the video stream (mpeg4,mpeg2,etc), not the codec. Any hint? Thanks

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• repairing or retrieving video off a cracked disk

  - by Tori Hisey

  My disk has a thin cracked right through the one side. right around the crack it looks like it has water damage but im pretty sure it was caused from the crack. will tape work for this? its a dvd of us in jamaica swimming with dolphins and i havent even watched it yet, it got ruined in my suitcase. If there is no way to repair it, is there somewhere that i can take it so they might be able to somehow get the video off of it and onto another disk? any suggestions would be helpful. Thanks

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• Asus V1S, no video signals but boots ok

  - by user52441

  Hey folks! I got a mayor problem with my 3 year old my Asus V1S notebook. After installing VMWare Player an rebooting the screen remained black and there was no POST screen. Also the other video outputs - VGA and HDMI - send no signals. However the maschine boots into Windows 7 properly (sounds waren played) and I can log in by blindly typing my pw. Testend WIN-P and functiom keys but no luck with that. Google is no help here, thats why I basketball you superusers! Please give me hints if you have any idea or if you experienced a similar problem. Thank you so much!

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• Play video from webserver

  - by Eyla

  Greeting, I'm creating a video play with silverlight 4 and C#. the player is working fine when I set the path for the target folder using this line of code. string FolderPath = this.Context.ApplicationInstance.Server.MapPath(@"~\Video\"); Now I want to place in C:\inetpub\wwwroot and I want to use the IP address of my IIS instead of the folder place. please advice how to modify this line of code to target my IIS. Thank you,

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• Why can’t two programs access my webcam simultaneously?

  - by qdii

  I first launch cheese and my webcam turns on. I then run vlc to grab the output of /dev/video0 but it fails with: [0x7f3ea40012e8] v4l2 demux error: cannot set input 0: Device or resource busy [0x7f3ea40012e8] v4l2 demux error: cannot set input 0: Device or resource busy [0x7f3ea4002168] v4l2 access error: cannot set input 0: Device or resource busy [0x7f3ea4002168] v4l2 access error: cannot set input 0: Device or resource busy [0x7f3eb4000b78] main input error: open of `v4l2:///dev/video0' failed Whatever pair of video programs I run (skype, cheese, vlc, etc.), the result is always the same: the second program can no longer use the webcam when the first one has already grabbed the output. However I find it curious as video4linux states: In general, V4L2 devices can be opened more than once. When this is supported by the driver, users can for example start a "panel" application to change controls like brightness or audio volume, while another application captures video and audio. My webcam is seen in lspci as 058f:a014 Alcor Micro Corp. Asus Integrated Webcam, but I don’t even know what the underlying driver is, so I can’t check whether my problem is driver-related or not. Any input would be more than welcome!

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• How powerful of a PC do you need to edit HD videos?

  - by Xeoncross

  I have a Core2Quad Q8200 (2.3GHz) with 4GB of RAM, a 512MB PCIe video card, and a SATA-2 HD. Yet it still isn't fast enough to edit 720i/p video in Sony Vegas or Adobe Premiere/Aftereffects. My RAM usage never peaks over 1.6GB, but my CPU cores make it to 95% quick! Right now the preview panes in all these programs lag to bad to actually work on the videos. I get to see 1-3 frames every second or two! So how fast do I have to go? At what point will my CPU be fast enough to actually edit these videos? I have to assume that regular people and their regular sub $2k computers can actually work with this footage. Another way to answer this is, how fast is the PC you used to edit videos? Update: I'ts worth noting that now that I have Adobe Pre/AF CS4 I am more interested in getting that working than my older Vegas 6. If you didn't have to re-run RAM preview every, single, time you made one change it would be my answer. But since I like to test many filters and effects before choosing one - I have to re-render a 1-sec section of footage over-and-over and it drives me nuts waiting. Perhaps a motherboard with Dual Xeon chips or something would be able to handle this. It would probably be as much as a dual-crossfire setup and would also speed up other applications.

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• periodically unable to play media

  - by avorum

  So I don't know if this is right place to ask this at all but I've gotten good help here before so I thought I'd ask. For the last year or so periodically my computer would start refusing to play media. In browser players would say they were playing but they weren't. No audio and the video wasn't moving forward although it would show the first frame of the video to be shown. iTunes would act similarly, thinking it was playing without actually playing any music. This persists across browsers, various application categories, etcetera. It can often be fixed by rebooting but it is only a short term solution. Does anyone know of anything that might cause this erratic behavior? I'm using Windows 7 64bit. If additional information would help please ask. Alternatively, if this isn't the right site for this I would greatly appreciate some direction to a site better suited to my question. Thanks in advance for any help.

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• What could cause a WMV to not play to completion in a browser?

  - by Ty W

  A realtor has had videos created for a community she is selling homes for, the people who made the videos gave them to us in WMV format. I can play these videos without any problem in Windows Media Player, VLC, and Quicktime (via Flip4Mac). I can play the videos from their location at videohomeguide.com in my browser without any trouble. However when I upload the files to our server the video stops at about the 1 minute mark in Safari and FireFox on Mac OS X Snow Leopard. I'm not sure if Windows browsers have the same issue because they are loaded using Windows Media Player. http://carolepaul.com/images/uploads/cottageslsjamestown.wmv <- our server, will fail at 1:09ish. http://www.videohomeguide.com/media/cottageslsjamestown.wmv <- should play to completion (3:27ish) The files generate the same MD5 hash on my desktop and on our server. I used WGET to transfer the files, always downloading from videohomeguide.com. Since the files are identical and are playable using VLC/WMP/Quicktime, and playable in the browsers from videohomeguide.com it seems to me that it is some sort of server config... maybe incorrect headers sent to the browsers? Here are the headers sent and received by FireFox on OS X: http://carolepaul.com/images/uploads/cottageslsjamestown.wmv GET /images/uploads/cottageslsjamestown.wmv HTTP/1.1 Host: carolepaul.com User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.2) Gecko/20100316 Firefox/3.6.2 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-us,en;q=0.5 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 115 Connection: keep-alive HTTP/1.1 200 OK Date: Mon, 29 Mar 2010 20:43:20 GMT Server: Apache/1.3.41 (Unix) PHP/5.2.6 FrontPage/5.0.2.2635 mod_psoft_traffic/0.2 mod_ssl/2.8.31 OpenSSL/0.9.8b Last-Modified: Wed, 02 Dec 2009 18:08:46 GMT Etag: "1e7919c-198eadc-4b16ad2e" Accept-Ranges: bytes Content-Length: 26798812 Keep-Alive: timeout=10, max=200 Connection: Keep-Alive Content-Type: video/x-ms-wmv

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• Tool for search, watch and download youtube videos on Ubuntu

  - by Mike

  I am looking for a tool like MacTubes for Ubuntu. MacTubes is a mac app that can search, watch and download youtube videos. The great advantage of this app is that it searches youtube and shows all videos available there and allows you to select all and download everything fast and easy. MacTubes is so awesome that it also converts the video to MP4 and downloads the HD version of a video when available. I use this on my mac, but my sister uses Linux and I am looking for something like that for her. I have tried Miro, but Miro's search feature is bad as hell. I search for something using MacTubes and it shows me 1600 results. The same search under Miro shows me 40 results. Miro never shows more than one page of results. I prefer it to be an application with a GUI, instead of command line, because my sister's proficiency in Linux is not that good. Any suggestions? Thanks.

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• Transcoding media server streaming to the iPhone

  - by pilif

  I have a huge collection of videos in different formats, but with one thing in common: They are not playable on an iPhone (or iPod Touch). Instead of complaining about Apple's IMHO broken world view ("there are no video formats but quicktime and mp4"), I wonder if there's a solution out there that allows streaming these different videos to the iPhone. This means that the source media needs to be transcoded on the fly. I already tried a few solutions out there, but with varying success: PS3 Media Server kind of worked, but only once and only for one single file. TVersity is said to work, but it requires UAC to be disabled and I don't see any need for this. The solution I'm looking for should run on Windows 2008 Server or Linux. I just can't believe that there's nothing out there that would allow me to stream my huge video collection on my iPhone (we're talking Wifi here, not 3G). After looking at the answers provided and after retrying TVersity without much success, I gave Orb another try and while the web interface failed to work for me, the iPhone Application (I tried the free one at first) actually worked flawlessly. And not only that, it also manages to convert the streams on-the-fly, so you don't have to wait for the transcoding process to finish before playback starts. On my 2.26 Ghz MacMini Server, this worked even with 1080p material. For Windows 2008 Server users out there: Remember to install the Desktop Experience Feature in the Server Manager if you intend this to work. Of all the stuff I had a look at, this really provided instant-success - even though I'm now probably sending the contents of my harddrive to orb's central server (sigh)

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• Codecs, Premiere Pro & Quicktime: Import or Play Error

  - by Nchpmn

  Original Question I've been using a FS-H200 (not the Pro variant) recorder with a JVC ProHD camera. I have been shooting with the DTE FORMAT to Quicktime (.mov). I copied the files to an external hard drive and am now trying to edit. The files will play back in VLC, as they would be expected to. However they will not import into Adobe Premiere CS5.5, instead giving an error: Unsupported format or damaged file. Quicktime gives the following error when attempting to play the files: Error -2002: a bad public movie atom was found in the movie (Filename) To try and fix this, I have installed the following codec packs: K-Lite Codec Pack 64-bit Full (version 5.9, latest) K-Lite Codec Pack 32-bit Full (version 8.4, latest) MainConcept Codec Suite (Broadcast) v5.1 for Adobe CS5 Reinstalled Quicktime with new download from Apple The same errors and problems still exist. From this I can assume that there is an issue with Quicktime and that is what Premiere is using as an encoder/decoder for the codec. Is there any way to fix this? From looking at the "Codec Information" from VLC: Stream 0 Type: Video Codec: MPEG-1/2 (mpgv) Language: English Resolution: 1280 x 720 Frame Rate: 25 Stream 1 Type: Audio Codec: PCM S16 BE (twos) Language: English Channels: Stereo Sample Rate: 48000 Hz Bits per sample: 16 Other computer specs: Windows 7 Professional 64-bit (SP1) Gigabyte Z68X-UD3-B3 Intel i7-2600K 16GB DDR3 2TB WD 7200RPM SATA 6Gb/s LaCie d2 Quadra 2TB v3 7200RPM (External HDD) NVIDIA GeForce GTX 560 Ti Golden Sample Updates 2012-03-11 @ 2050 AEDT MPEG Steamclip doesn't recognise, play or convert the footage. File open error: unrecognised file type. [Open Anyway] File open error: can't find video or audio tracks. 2012-03-24 @ 1920 AEDT Had to transcode the footage. :(

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• Convert MPG w/ AC3 audio to something else - on a Mac

  - by anonymous coward

  I'm helping with a small volunteer media team, and they have several .mpg videos that don't appear to have sound when played in QuickTime, iTunes, Real Player, etc, on the local Mac machine. I was able to hear audio after transferring one of the movies to a Windows machine that had VLC media player on it. Through VLC I was able to discover that the audio stream is a52 / AC3 format. We use Autodesk Cleaner in our normal workflow of converting the format of our videos to FLV, but for some reason it's unable to convert this particular batch of videos (well, the video converts fine, but with no audio). Obviously, it seems that there's a codec issue here, but I'm not sure how to correct it. (I'm not extremely familiar with Macs, and/or Autodesk Cleaner). I've seen the Perian codec pack, but I'm not sure that having the codecs on the system will enable Cleaner to convert these videos (particularly the audio stream, since the video converts fine). Is there something obvious that I'm overlooking, or will we have to use something else for this particular batch of videos? If so, what?

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• Playback random section from multiple videos changing every 5 minutes

  - by brian

  I'm setting up the A/V for a holiday party this weekend and have an idea that I'm not sure how to implement. I have a bunch of Christmas movies (Christmas Vacation, A Christmas Story, It's a Wonderful Life, etc.) that I'd like to have running continuously at the party. The setup is a MacBook connected to a projector. I want this to be a background ambiance thing so it's going to be running silently. Since all of the movies are in the +1 hour range, instead of just playing them all through from beginning to end, I'd like to show small samples randomly and continuously. Ideally the way it would work is that every five minutes it would choose a random 5-minute sample from a random movie in the playlist/directory and display it. Once that clip is over, it should choose another clip and do some sort of fade/wipe to the chosen clip. I'm not sure where to start on this, beginning with what player I should use. Can VLC do something like this? MPlayer? If there's a player with an extensive scripting language (support for rand(), video length discovery, random video access). If so, I will probably be able to RTFM and get it working; it's just that I don't have time to backtrack from dead-ends so I'd like to start off on the right track. Any suggestions?

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• VLC Crash when playing MKV files in Windows 7

  - by Phelios

  I'm not sure if the mkv file is corrupted, but when it is opened with VLC player, VLC loads up and displays nothing. Can't even close VLC after that. And also, VLC is running with 50% of the CPU. I have to use End Process to kill it. How do I know if the file is corrupted? How do I solve this? info from mediainfo Format : Matroska File size : 69.4 MiB Duration : 21mn 48s Overall bit rate : 445 Kbps Encoded date : UTC 2009-11-20 18:33:49 Writing application : mkvmerge v2.9.7 ('Tenderness') built on Jul 1 2009 18:43:35 Writing library : libebml v0.7.7 + libmatroska v0.8.1 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : [email protected] Format settings, CABAC : Yes Format settings, ReFrames : 2 frames Format settings, GOP : N=1 Codec ID : V_MPEG4/ISO/AVC Duration : 21mn 48s Width : 640 pixels Height : 352 pixels Display aspect ratio : 16:9 Frame rate : 23.976 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Audio ID : 2 Format : AAC Format/Info : Advanced Audio Codec Format profile : HE-AAC / LC Codec ID : A_AAC Duration : 21mn 48s Channel(s) : 2 channels Channel positions : Front: L R Sampling rate : 48.0 KHz / 24.0 KHz Compression mode : Lossy

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• Can Windows Media Player create playlists based on folder structure?

  - by Chaulky

  Over the years I've carefully molded my digital media collection into a series of folders that make it easy for me to find what I'm looking for. I recently discovered the awesomeness that is streaming video from Windows 7 Media Player to the PS3 so I can watch it on the big screen without all the hassle of hooking the computer up to the TV. The problem is, I totally lose my carefully crafted folder structure and all my videos become one giant mess again... not cool! As a temporary solution, I've created a few playlists for my favorites (Dexter Season 4, Dexter Season 5, Breaking Bad Season 1, etc.). This is a HUGE pain in the a$$. So, is there a way to get Windows Media Player (on Windows 7) to maintain some sort of folder structure based on the location of the actual video files? So if I have my videos sorted into folders by show and season, Media Player will pick that up and let me browse it in the same way. As an alternative answer, I'll accept suggestions for a program that can also stream to PS3 and has this "folder organization" feature.

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• Can Windows Media Player create playlists based on folder structure?

  - by Chaulky

  Over the years I've carefully molded my digital media collection into a series of folders that make it easy for me to find what I'm looking for. I recently discovered the awesomeness that is streaming video from Windows 7 Media Player to the PS3 so I can watch it on the big screen without all the hassle of hooking the computer up to the TV. The problem is, I totally lose my carefully crafted folder structure and all my videos become one giant mess again... not cool! As a temporary solution, I've created a few playlists for my favorites (Dexter Season 4, Dexter Season 5, Breaking Bad Season 1, etc.). This is a HUGE pain in the a$$. So, is there a way to get Windows Media Player (on Windows 7) to maintain some sort of folder structure based on the location of the actual video files? So if I have my videos sorted into folders by show and season, Media Player will pick that up and let me browse it in the same way. As an alternative answer, I'll accept suggestions for a program that can also stream to PS3 and has this "folder organization" feature.

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• Application Screen Repainting Issues

  - by Jeff Sheldon

  I have this issue lately at work. It drives be nuts, and I finally stopped to ask this question. It's quite often that an application I've been running just randomly fails to repaint itself for a while, usually in the editor screen. I most often see this occurring with Expression Web, Visual Studio 2008/2010 and SQL Server Management studio. These applications are what I work in the most, so I'm not surprised to mostly see it here. But I was curious if anyone else had a solution for this. I've tried: Reboots. The screen shot below is about 10 minutes after a reboot. New Video Drivers. This machine is running a Nvidia Quadro NVS 290 video card with the latest drivers. Closing other applications, this is the only thing running right now. As far as hardware, this machine has Dual Quad-Core Xeon 2.83ghz Processors, with 10 gigs of memory, running Windows XP SP3 64bit. Any help would be great. JNK EDIT: Per comments from deleted (wrong) answer: I'm running dual monitors. Set it to single display, still occurred. Rebooted, and tried it again, and it still occurred. Switched it back to dual screen. My resolution is only 1400x900 on each.

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• C# web cam WM_CAP_CONNECT: Want to force a capture source when multiple capture sources present.

  - by Codejoy

  I am using WebCam_Capture code I found online to access through C# a web cam. On a computer with one video source it works like a charm! (Program starts up at start up, finds the webcam and it works). Though on a computer with many video sources (Say a web cam and then manycam running on top of that), the program starts and queries the user which source to use. I would love my program to start up autonomously at the restart of a machine so this waiting for user input throws a wrench in that, anyway I can force it to just select say the first found source and go with that? So i have some webcam code I yes indeed found online here: http://channel9.msdn.com/forums/TechOff/93476-Programatically-Using-A-Webcam-In-C/?CommentID=94149 and now in preparing this post I did do more research and found out that my issue lies in this line from the above code: SendMessage(mCapHwnd, WM_CAP_CONNECT, 0, 0); That is what connects the webcam up, the only issue is that the above brings up this annoying video source dialog if I have more than one source. I want it to just use the first source so that dialog doesn't come up. I tried passing in different values where the 0's are, sure enough the dialog doesn't come up but it doesn't work either. Anyone know if there is a value I can pass to the SendMessage to suspend the dialog and yet have it select the first video source it finds?

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• How to write a Media Center plugin like the Netflix plugin? Source code/reference samples?

  - by Vin

  I am looking to write a Windows Media Center plugin just like the Netflix WMC plugin. Once logged in, I know the streaming urls that I need to hook in to. Any source code, reference samples would be great. Found one on codeplex for swedish TV channels, but right now it's not working for some reason... Previously asked the following question, with no answers, so updated with a question asked in a easy to relate fashion Host a streaming video in my client, from a streaming url that is behind a login session? I am building a Silverlight 4 desktop client to show streaming video from a site that is login based. So that website has a Silverlight player that does streaming video, the player is behind a login sesion, so just by getting the url from fiddler and trying to play it in my Silverlight 4 desktop client won't work. Actually after that, I want to build a Windows Media Center plugin to build a Netflix-like client, that allows login through WMC and then allows you to watch streaming video. Any pointers on how to go about doing any of this?

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• Stack Overflow on Marshal.PtrToStructure reading wmv files

  - by Nick Udell

  Hi, I'm using a frame grabber class in order to capture and process each frame in a video. The class can be found here: http://www.codeproject.com/KB/graphics/FrameGrabber.aspx I'm having issues with running it, however. When loading the file, it attempts to marshal a video format pointer into a VideoInfoHeader (I'm using DirectShow.Net). The code that does this is as follows: videoInfo = (VideoInfoHeader)Marshal.PtrToStructure(mediaType.formatPtr, typeof(VideoInfoHeader)); When I run this it immediately crashes out of the debugging environment, probably with a stack overflow. When stepping through I can see that the formatPtr always equals 93, though I do not know what to make of this as I am fairly new to marshalling. I have checked that the video runs fine in Windows Media Player. This is essential in finding the dimensions of the video and also the size of the header, which needs to be skipped before the frames can be read. I am running Windows 7 x64. Any help on this would be much appreciated, I must've tried fifteen different frame grabbing techniques.

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• Shadowbox.js and dailymotion videos

  - by Greenie

  Hi there. I have a site set up with some thumbs and links to videos hosted on vimeo. I show them in a overlay using shadowbox.js. This works perfect. Now I want to add a video hosted on dailymotion, but it doesn't work. The working link to vimeo video: <a rel="shadowbox;height=636;width=956" href="http://vimeo.com/moogaloop.swf?clip_id=11377863&server=vimeo.com&show_title=1&show_byline=1&show_portrait=1&color=00ADEF&fullscreen=1" class="player_text">thumbnail here</a> The non working link to dailymotion video: <a rel="shadowbox;height=636;width=956" href="http://www.dailymotion.com/swf/xd6g8y?related=0&autoplay=1" class="player_text">thumbnail here</a> When the href is pasted in a browser, both links work fine. Both are played in a swf as far as I can see. So I can't see why shadowbox won't show it. Unless its a permission problem on the dailymotion video. Anyone know what I'm doing wrong?

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• Windows Media Center showing Jerky Video on PC

  - by Kris Erickson

  I had to repave my Windows 7 x64 box last week due to a hard drive crash, and for a while everything was running perfectly but now all videos in Windows Media Center are jerky (the sound is fine, they just seem to skip a ton of frames all the time). This is on the local machine, but the same thing happens when I try to stream to my Xbox. The videos all show fine in VLC and Windows Media Player. I guess I must have installed something recently (in the process of getting all the apps I usually have running on my PC) that caused this but for the life of me I can't figure it out. I have updated to the latest video driver (and then rolled back to the standard Windows 7 driver), I have rolled back all the other drivers that I have installed (I believe). I have uninstalled all the codec packs (I also run TVersity, so I hate the TVersity codec pack installed), and I uninstalled TVersity. Nothing seems to help. I have uninstalled windows media center, and reinstalled it from the Programs and Features. I have basically ran out of things to try to fix this, and am almost thinking about reinstalling Windows again. Any suggestions?

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