I tried recordmydesktop from command line as it appeared the GUI frontend was using a lot of resources .......
Here is the output from the terminal .... I did not bother specifying the sound device .....
[user@Dell ~]$ recordmydesktop -windowid $(xwininfo |grep "Window id:"|sed -e "s/xwininfo\:\ Window id:\ // ;s/\ .*//") -fps 15
Initial recording window is set to:
X:0 Y:51 Width:1680 Height:972
Adjusted recording window is set to:
X:0 Y:50 Width:1680 Height:976
Your window manager appears to be KWin
Xlib: extension "Generic Event Extension" missing on display ":0.0".
Initializing...
Buffer size adjusted to 4096 from 4096 frames.
Opened PCM device hw:0,0
Recording on device hw:0,0 is set to:
1 channels at 22050Hz
Xlib: extension "Generic Event Extension" missing on display ":0.0".
Capturing!
^CShutting down.
*********************************************
Cached 6 MB, from 2320 MB that were received.
Average cache compression ratio: 99.7 %
*********************************************
Saved 742 frames in a total of 739 requests
....
STATE:ENCODING
Encoding started!
This may take several minutes.
Pressing Ctrl-C will cancel the procedure (resuming will not be possible, but
any portion of the video, which is already encoded won't be deleted).
Please wait...
Output file: out-3.ogv
[100%]
Encoding finished!
Wait a moment please...
Done.
Written 2002449 bytes
(1997927 of which were video data and 4522 audio data)
Cleanning up cache...
Done!!!
Goodbye!
[user@Dell ~]$This bit seems significant
*********************************************
Cached 6 MB, from 2320 MB that were received.
Average cache compression ratio: 99.7 %
*********************************************
When played back I still have approx 1 frame every 7 seconds.
I wonder if it has anything to do with running it on KDE4?
regards.