DrLumen
I'm guessing there is no way other than to catalog them all manually. Like that is ever going to happen. :) To say the least, I have quit buying loops. I get so tied up looking through the loops that I lose time and the motivation/inspiration. I was just hoping there may have been a silver bullet somewhere that i missed.
Unfortunately that is the only way I have found to do it, and that is not ever going to happen for me either, especially for those with the cryptic names.
The only thing I have done (for samples that are not dependent on the player they were created for) is to use Geist, which allows you to no-destructively load and slice loops and then save those as pads or even whole kits. The upside to this is you can use just the kick from a given loop, and blow off the rest if desired. As long as you keep the relative path the same to where the samples are stored, you can create pads/kits from (even extracted slices of) samples from anywhere (although Geist does have a nice autosearch to find things you may have moved). This is about the only way I have used to find the "cool samples" for a second time, and the browser in Geist can preview nicely for the first pass (but again that can time consuming). The browser also lets you search all paths you have put in the browser (for those which do not have non-descriptive names), such as "cajon" will return all samples with cajon in the name. But... you can get yourself into non-descriptive names of your own when saving kits

.
There are also sample players that allow you to give star ratings to things you have played, but not all have good search functionality, and I am not sure which would suit a sorting endeavor such as this. Maybe someone can offer advice for which of those might work.
Bottom line though... you can spend the rest of your life sorting samples and never find time to use them, so with a broad enough set "discovered" you can often work more quickly using the audio tools we have available to manipulate those into what you want/need.