avi, wmv, mp4, mov), each of which can make use of different codecs. To compound the villainy, media is now encoded in many different containers (e.g. When PowerPoint comes across a media file in a presentation, it uses Windows Media Player to attempt to play it, and if the codecs don’t match up, it can’t decode the data and the clip won’t play. Hair-pulling/beard-scratching occurs when the codecs used to create or convert a movie file on one PC are not installed on the target PC. Essentially, codecs encode and translate your media to make it suitable for storage and playback – and there is an assortment of different ones. This is an issue we’ve come across many times over the years, and it can be very tricky and time-consuming to troubleshoot, so we’ve developed a little tool that can be used to identify the most appropriate video format to use when embedding videos in a presentation that’s going to be used by someone else.Īt the heart of all the trouble is a little thing called a ‘codec’ (or coder-decoder, or compressor-decompressor). ‘Codec unavailable’ tells you what doesn’t work, but it doesn’t tell you what does. And how frustrating when you bundle up your nicely self-contained multimedia presentation and someone else reports that the videos don’t play on their PC. How marvellous that the recent versions of Office automatically embed videos into PowerPoint instead of linking them.
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