Like PhantomSnake said, most of the users are using CDDB/freedb nowadays.
But Let's tag is still working for me and i am still using it in conjunction with
Mp3tag.
Last version of the program seems broken...
i am using version 0.1.1.0 which i uploaded here if anyone is searching for it.
Thanks again for the wonderful tool
Here's how i personally do it, you can personalise the tag strings differently of course.
The format string i am using for the "Tag -> Filename" on Mp3tag is the following one:
$replace($num(%track%,2) - %title%,: ,- ,:, - ,",'''',/,~,?,？,<,[,>,],*,-,|,-)
Again, this is highly personalisable.