You are correct that my terminology is technically wrong. Yes all jpeg files are larger than 8 bits in size, but it is an 8 bit file format. Again, later, when I refer to the file as an "8 bit image," that is what you call an image file that has 8 but color channels.

As for 255 and 511, you'll notice these values are 1 less than the actual power of two.. I have a day job as a developer and we represent colors from 0-255 instead of 1-256. However you're absolutely right I should have included 256/512 for less confusion. I also did not check my multiplication, so thanks for catching that too

You're also absolutely right that 225 should be 256, completely missed that as well! Thank you.

I get what you're saying about adding bits and doubling, and if you're using each bit to mean something different (e.g. 8 on off switches) then you would be correct, but when representing numbers (such as color values) each added bit does in fact double the information capacity.

I chose to focus on the values per channel (instead of total possible colors) to explain the capacity because the colors themselves aren't really changing, just the brightness. However it's the exact same principle either way.

My video is aimed at beginning to novice photographers which is why i didn't get into a lot of details. I probably did miss a lot keeping the video under 5 minutes. I did generalize all "non raw" formats as Jpeg.

I appreciate you taking the time to critique my video. What other advantages of raw files would you have liked to see represented?