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I’m getting this error while uploading video file with cck video field into a node.

Problem is not related to to php.ini size settings.
My upload_max_filesize and post_max_size in php.ini are set to 500M, while the issue appear with a 10M file.

The SQL “CHECK TABLE” return “check status OK” for all cache tables.

There’s a fix for image module http://drupal.org/node/500646#comment-1918678.
I presume that “$form['#cache'] = TRUE;” should be placed in the head of function “function flashvideo_form_alter(“

Disable all cache settings => http://drupal.org/node/500646#comment-1918678 supposed to be the last walk around.