How to use hypercam, or something to record runescape

Whever i try to record runescape with hyper cam, even when i turn video quality to 100 the video quality sucks. I see people like sparc mac, with really good video quality on runescape, how do they do this? also, it isn't my computer as it has a 5850 graphics card, core i5 750 processor, and 6 gig of ddr3 ram.

 

Download Camtasia, it records in HD.

 

see hypercam sucks for me too..
I tried camtasia but it lags my comp, flashes the mouse (annoying) and the files are like 5GB each video.


EDIT:
try this one: http://camstudio.org/
it's working halfway decently for me... it's not the best quality though :\ but free and alot better than hypercam

EDITofEDIT:
configure the compressor to TechSmith Screen Caputre Codec under the video options and it'll make the quality perfect

 

Um I Use Fraps 100 Fps Full Size it records in HD Like Quality

 

I personally use Camtasia although it can lagg your computer if it's processing power isn't very good.

 

see my computer has a 3.0 Ghz processor and it still lags me.

 

I'm using a 2GHz, and Camtasia works pretty good for me, try only having less windows open, or change the priorities in the task manager.

 

I have an i5 and it lags

 

I'm on a laptop with 2GHz proccesor and it runs perfectly fine, 5Gig of ram.

Camtasia runs smooth and has great HD quality.

 

I am interested in this too. If I have a 2010 imac, would it work ok? I believe its quad core processors and 16gb of ram. (That's the right stuff to say, right? I'm not the best when it comes to this stuff )