Caveat: However, if you are NOT installing KLite Codec Pack and instead will be using the Windows Media Foundation(MF) codecs supplied with Windows, then WMV would be your best media format choice.

MOV, FLV, etc) is not performing as expected, try converting the video to MP4 to see if the issue is resolved. This is NOT to say you must convert all your videos to MP4(AVC H.264). Other media formats will work, but the MP4 codec has shown solid reliability in our testing.

MP4(H.264) is the the Recommended File Format choice to use with KLite codecs and VideoMill.

KLite will install codecs that will facilitate playing MP4s (and many other formats) on a secondary display device.

Install and tweak the KLite Codec Pack as detailed below (unless you have your own professional codecs installed).

If you want to fully understand this recommendation, read the sections below. You will most likely need to apply the codec tweaks below for Video Mill to work properly. This can cause videos to freeze up when played on a secondary display (showing a blank screen or freeze on frame 1).

Windows 10/8/7/Vista The standard Windows codecs are quite deficient in their support of non-Microsoft video formats (including popular ones like MP4 MOV, FLV, etc).It includes tools for creating your own encoded audio and video files along with everything that the Full pack contains. K-Lite Codec Pack Mega: The Megapack is the ultimate choice if you want it all.K-Lite Codec Pack Full: Installing the Full pack gets you everything the Standard pack offers with additional support for specialized filters and tools.It contains everything, similar to the Basic package, but with additional codecs for playing video formats. K-lite Codec Pack Standard: The Standard pack is the best option for most users.K-lite Codec Pack Basic: The Basic pack is a streamlined version that contains only the essential codecs, which is great when you want to save space on your hard drive.There are four versions available to download for 32- and 64-bit computers, depending on your requirements. It has a user-friendly interface that makes installation easy, and it contains an impressive variety of codecs that are regularly updated.

The K-Lite Codec Pack (which is compatible with Windows 10, 8.1, 8, 7, Vista, and XP) is a popular codec pack for a good reason. No help file or documentation for utilities.

Best codec pack