I have used qt-recordmydesktop tool for recording a specific window (final result should be tutorial). The output file was in OGV format and in very high quality. I wanted to edit the file using Kdenlive and to change it to more common format (AVI, for example). The result was that the quality of the recording was much worse. Does anyone know how to edit the file and change file format, but also preserve the high quality which was in the original recording in OGV format. Thanks in advance.