I wanted to create an MPEG file with mencoder, but for some extremely strange reason, mencoder refused to do so and displayed the following error message:
Since it was supposed to *create* the file "test.mpeg", I was confused why it complained that it didn't exist.File not found: 'test.mpeg'
Failed to open test.mpeg.
Cannot open output file 'test.mpeg'.
WTF?!
[SOLUTION]
Well, the file did already exist from a previous run - and was still opened in Avidemux. Now mencoder couldn't write that file and outputs the misleading error message: "File not found".
Actually, the error message should have been:
"Cannot write output file 'test.mpeg'."