converting to quicktime

I have a video file that I need to convert to quicktime to play. Right now it won't play in anything. What software will convert a file to quicktime?

 

What type of file is it?

Quicktime Pro can import and export many file types.

Here is a list of file types that Quicktime Pro can import and export.
http://www.apple.com/quicktime/products/qt/specifications.html

 

Is there a way to do it without paying for quicktime pro? I am not sure what file type it is? How do I find out?

 

What is the file extension?

 

it says it is a quicktime file but when i click on it it says "it is not a file that quicktime understands".

 

If the file has the correct extension and will not play then it is probably a corrupt file.

 

The file did play just fine in quicktime, until i tried to convert it to an avi with some stupid software that didn't work and now the file wont play at all. I just want to try to convert it back to what it was. Any suggestions. Thanks.

 

You still haven't stated what file extension it has(.avi, .mpg, .ogm, .mkv, .rmvb, .mp4). Try analyzing the file with G-spot( http://www.headbands.com/gspot/download.html ) and find out which 4cc it uses(if any).

 

i used the g spot program and it says n.a. for the 4cc.