about video!! HELP!!!

Windows 自己內置有個 software 叫 Windows Movie Maker
係唔使 download GA
佢個 function 就係將 avi file 轉做 wmv
又好用又方便

英文介紹 (可供參考):
Windows Movie Maker is video editing software that is included in recent versions of Microsoft Windows. It contains features such as effects, transitions, titles/credits, audio track, timeline narration, and Auto Movie. New effects and transitions can be made and existing ones can be modified using XML code.

Windows Movie Maker was introduced in Windows Me, but suffered from poor reviews due to its modest feature set in comparison with the year-old iMovie product on the Apple Macintosh.[citation needed] Version 1.1 was included in Windows XP a year later, and included support for creating AVI and WMV 8 files, as well DV video support. Version 2.0 was released as a free update in November 2002, which added a number of new features. Version 2.1, a minor update, is included in Windows XP Service Pack 2. Windows XP Media Center Edition 2005 introduced a new version of Windows Movie Maker, 2.5, with more transitions and DVD authoring. A WPF version was included in later builds of Windows "Longhorn", but was removed due to instability.[citation needed]

In Windows Vista, Windows Movie Maker has been upgraded to version 6 to match the version number of the operating system, the SDK however refers to it as version 3.0. It is included in all editions with the exception of Windows Vista Starter. Its major new features include support for HD encoding (only in the Home Premium and Ultimate editions), about 20 new effects, a few new transitions, and support for the DVR-MS file format which Windows Media Center records television in. Windows Movie Maker 6 also integrates with the Windows DVD Maker application included in Windows Vista. However, the Windows Vista version of Windows Movie Maker no longer supports importing video from an analog video source such as a VCR or from a Web camera.

2007-04-02 19:13:05 補充：
(If you are using Windows XP, you can find the program as follows)如果你係 Windows XP 的使用者，可以根據以下方法開啟:[開始] --> [所有程式] --> [附屬應用程式] --> Windows Movie Maker

you may use "window media player"(WMP)

first you open the file at rhe WMP
and then click file and click save as
change the file name like 123.wma