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When using iTunes or QuickTime within Microsoft® Windows Vista® to view CatheDownload videos, you may experience a noticeable synchronization issue between the audio and video (the audio may get ahead of the video or vice-versa). This is a known and widespread problem with M4V video files (the format CatheDownloads employs) in Vista, but has no solution. Your videos will still play correctly on your iPod/iPhone, but if you view them on your computer screen you might experience the problem. Mac OS X® and PCs running Windows XP® or Windows 7® do not have the issue.
Our only suggestions to solve this problem are to either install Microsoft's Zune® software for viewing, available at http://www.zune.net/en-us/products/software/download/default.htm (see our tutorial sheet for detailed instructions on using Zune software) or to upgrade your computer to Microsoft Windows 7, which does not use QuickTime for native M4V vid- eo playback. We're sorry there is not a more elegant solution to this synchronization problem. However if one is developed, we will post information on the CatheDownload site.