Okay..
I have been working with both and here is my opinion on how you should decide what to use.
If you have Windows Vista x64 or Windows 7 x64, you will not get the 1FPS avidemo recording glitch, otherwise if you use a 32bit variant or Windows XP, stick with Fraps, as it will be 20x faster in recording.
If you record with AVIDEMO, you will be using a quantity of 200 screenshots per second,
With FRAPS it would be a timescale of 0.125, sped up 8 times to normal speed, by a recording of 30fps, which will basically give you a total of 240 screenshots per second.
With AVIDEMO, you will not get a laggy recording at all even if you choose to render your clip/movie out in 30fps or 50fps, unlike fraps, where at times your FPS could spike (especially if you are recording at 50fps), your final footage will come out choppy.
To keep the Audio in sync with the Video recording, your method of recording must be divisible by 1000. This is why people choose to record avidemo at 200.
1000/1000 = 1 (use this to record really smooth slow motions parts)
1000/500 = 2 (use this to record really smooth slow motions parts)
1000/250 = 4 (I was going to use this for bullets movie, but when playing the footage back in the vegas project, it seems to stagger more than 200)
1000/200 = 5 (optimum for smooth quality video)
1000/100 = 10 (I used this for the last remanence, and it severely limits the smoothness of the footage when slowing down the footage - do not recommend)
1000/50 = 20 (don't even bother..)
If you record with FRAPS at the timescale mentioned above, you will find that your gun will finish shooting before the recorded sound does stop (or vice-versa, cant remember), and will have to chop up your sound clip to sync each bullet which is a pain in the ******* ass, thus you are limited to what timescale you can smoothly record your footage at.
A severe advantage with utilising AVIDEMO is for the custom antialiasing/anistropic filtering options your graphics card drivers offer you to increase. This is where AVIDEMO shows that it can produce a better recording image, than fraps, and then carry it on to the final render.
I currently cannot show any screenshots to prove this, as I cannot find the thread Mazarini posted on tek-9 about a year ago, but in short, this thread outlined with pictures showing the difference when you went to your NVIDIA control panel for example, and forced all the graphics options to record at a higher quality.
Even if you think your graphics card will lag and won't record smoothly, you record in AVIDEMO as it records screenshot by screenshot, not at a constant framerate like FRAPS does, in which since your graphics card options are so high, FRAPS will skip some screenshots, because your computer is lagging behind, to keep up with the capture rate demand.
If you begin to think... ohhh whats the point of doing all this extra shit with avidemo when it can be simply done with fraps, without these extra options? If you are making a movie, and want to learn and get better at this stuff, you might as well give it your entire shot, to make it look as best as you are able to, so people can appreciate your work.
People need to try and raise the bar in Australia, to compete with overseas movies, since I am sick of seeing a lot of crap being lazily made by people, with next to no effort, to make it look better.
PS: In regards to tekkno's post,
I record my footage in 1280x960 4:3, then crop in Vegas to 16:9 to get the 16:9 widescreen look so,
1. The footage doesn't look zoomed out
2. The text is nice and easy to read.
3. The footage doesnt look ******ed when you play around with the cropping/light effects tool.
I find it basically looks a lot more clean.
I recorded remanence in 1280x1024 cropped to 720, so this screenshot looks similar in what I was describing.
Best of luck McLovin in making your movie, I hope this helped ^^^
(Makes me wanna make a detailed avidemo tutorial now.. rofl)
Posted on Saturday, 10th April 2010