There are plenty of programs (freeware and shareware), some less sophisticated others very sophisticated. I tried a large number of them. The one mentioned above is a good one!
But they have all one great limitation which makes them quite unusable for me. They cannot import MC11 tags (especially for images). With many of them you can enter tags, but on a per picture/track basis. Who wants to re-enter thousands of tags by hand?
That's why I asked J River many times to add this functionality to MC, but they seem to be deaf on this topic! Maybe in MC12! Or they could buy one of those companies that make such programs and integrate it in MC
It's a pity to have 20'000 neatly tagged images on disk and not being able to create nice CD's/DVD's for your friends. They always give nice presents and people just have to put them on their DVD player and enjoy your creation.
Also, framing of images would be a nice add-on. Some art galleries have very nice framing programs that allow you to choose which frame you want with a given picture. Framed images look much better, even on a screen.