If you fill tag by hand, you can also fill Title field in ID3 tag. But the Title is for every file different. There is a function, which allows you fill Title fields. You have to create file, where the title string on each line is. Be sure to have exact same lines's count as count of files in your directory (be careful with one empty line on the end of file), if no, nothing will happend.
Example of the file (for 3 files in directory):
My Song 1 My Song 2 My Song 3 EOF