cck audio field

Hello,

I am working on small audio/music drupal based website.
I have created content type call "Audio" to upload the mp3 audio files.
In the "Audio" content type Audio field used cck module used.

This Audio field cck allows small mp3 files to upload with out any problem. But when a file of 60MB, try to upload it gives ajax error.
I have attached screenshot of error page.

File uploading capacity is 100MB on webserver.
Any one has faced this type of problem?

Thanks in Advance
Nikhil