What can I use iStock video footage for?
iStockvideo offers three file types, and several sizes of each. Here’s a quick breakdown. WMV If you are making a Powerpoint presentation or other PC based multi-media project, or just emailing a video to a friend, then a WMV version will be best suited for you. The size depends on how large you want the video to play while retaining detail. WMV does not scale up well without losing a lot of quality, so in most cases the larger size is preferable. Most PC’s can play WMV files automatically, but Macs require the free Windows Media Player from Microsoft, or a player from Flip 4 Mac to view them. The WMV files are highly compressed using the Windows Media 9 codec and as such are fairly easy to transport on the web. The visual quality is similar to the MP4 version, but not as high as the Quicktime version. MP4 For smaller multi-media presentations on a Mac, MP4 is probably a good choice. Like the WMV though, these files do not scale up well. Unless you know for sure that 320×180 pixels is
