The tutorial seems nice so far. (You mention that the only two YMF262 arcade games are already logged - cool.

)
Something that's wrong is, that you recommend to send all VGMs with only one SN76489 to SMSPower and VGMs with YM2612 to Project2612. That's not correct, because there are consoles (like FM Towns, although that's actually a computer) that use these chips but are neither Master System nor Mega Drive.
It's nice that you list tricks related to sound logging. In MAME/MESS you should be able to simulate pressing 'Insert' by disabling throttling (F10) and increasing frames kip (F8/F9), btw.
vgm_smp1 is recommend for SN76489 and T6W28 chips, to be exact.
Here some additional things (for contributors in general) that we discussed in the Staff Lounge:
- File naming should be "## Track Title.vgz" (no game name, no additional dashes)
- updated
description.txt file (note: date is YYYY-MM-DD)
And a small bonus - to make an m3u-file, copy this line into notepad and save it as MakeList.bat:
Code:
dir *.vg? /B /O:N > List.m3u
Then copy this file into a folder with VGMs and double-click on it to make a perfect playlist file.