Any version of [edit] avi or mpg has a nasty virus which throttles your CPU to 100% constantly. The only way to get rid of it is to restart in safe mode as an administrator and delete the file in DOS.
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Edited to comply with the House Rules.
Warez, copyright violation, or any other illegal activity may NOT be linked or expressed in any form.

The best thing to do is check those large files with Bitzi before you try to
download them. That malformed AVI has been used to trick many people and
the warnings have been available since that file was first made.

To his defence I too downloaded one of those not to long ago. When I checked Bitzi I got "Bitprint not found" and decided to try anyway.

BTW The complete filename of this one was written so even I got tricked and I think I know what to look for.