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Category Archives: Screen Toaster

A List of Available Free Screencasting Tools

There are several freeware screen-recorders:

UltraVNC Recorder: – Basically CamStudio with some speedup enhancements.
Microsoft Encoder 4: Download link The free version of Encoder 4 can screen record up to 10 minutes at a time. Continue Reading…

Best Color Depth?
16-Bit Color Vs. 32-Bit Color Explained!

Use 16 bit color for screen recording and that will bring the file size down quite a bit. It also will allow your computer to work more efficiently! But let me explain first what “32-bit color” vs. “16-bit color” (and 24-bit color) really means! Then you may make your decision based upon what’s “really going on” under the hood!

16-bit video usually uses 5 bits (32 brightness levels) for red, 6 bits (64 brightness levels) for green (because our eye is more sensitive to green), and 5 bits again (32 brightness levels) for blue. So, 32 X 64 X 32 equals the famous “65,536 colors” you often hear about. Some Macs use 5 bits for each (for 32 X 32 X 32 = 32768 colors) and then uses 1 bit for an alpha channel. You most likely use the first type, however.

“32-bit color” is actually 24 bit color, plus an extra 8 bits for an “alpha” channel. Thus, 32-bit color is using 8 bits (256 brightness levels) for red, 8 bits (256 brightness levels) for blue and also 8 bits (256 brightness levels) for green’s brightness and 8 bits for the alpha channel, so it is actually 24-bit color with the added 8-bit alpha channel included. I understand that some video card’s transparency effects are dependent upon the 32 bit mode, Continue Reading…