How do I edit and combine .mov and .avi clips into a single movie?

No, you'll need to convert MOV into AVI first. Try eRightSoft's SUPER, no guarantees. MOVs are pretty hard to convert. Best conversion tool is QuickTime Pro, but that cost $$$.

You can combine multiple clips with Ulead or Nero. Whether you can use a mov file is another issue. Apple charges royalties for a software to use mov format, so not all editors can. You may have to convert the mov clips to avi or mpg first. Check at http://download.com/ and you will probably find a simple (free) mov to avi/mpg converter you can use.

Here is a solution:

1. Convert .MOV clips into .MPEG format using WinAVI Video Converter. URL: http://www.winavi.com/mov-converter.htm

2. Convert your .AVI clips into .MPEG format using WinMPG Converter. URL:http://www.winmpg.com/

3. Combine all .MPEG files into a single .MPEG File using MPEG Joiner. URL:http://www.008soft.com/products/mpeg-joiner.htm

Now you are ready to play your single MPEG File in Windows Media Player.

You have to convert them into same extention , for example convert your .mov to .avi , you can use ulead, but i suggest you freeware program ;

http://www.videohelp.com/mov2avi

then you should combine them with using movie editor program , adobe premiere pro 2 is the best for movie editing, also you can use windows movie maker, you can download it free from ;

www.microsoft.com/windowsxp/downloads/updates/moviemaker2.mspx

or you can install it with using your Windows XP CD .