Mp3tag是MP3文件ID3-Tag信息修改器。所谓ID3-Tag 信息，就是在MP3文件中加入曲名、演唱者、专集、年月、流派、注释等信息，便于您收集歌曲。

2.39c (2007-10-06)
NEW: helper menus for quick access to placeholders and scripting functions.
NEW: scripting function $ord(x).
NEW: tooltips for long items in drop-down lists.
CHG: invalid characters are now automatically removed from file names when creating new export configurations.
CHG: removed menu item 'Default values in input fields'.
CHG: removed obsolete option dialogs for converters and actions.
FIX: message regarding inproper installation after installation under Windows Vista.
FIX: tracknumbers greater than 255 are written as 0 now at ID3v1 because of limitations of ID3v1.
FIX: when sorting the export result with an undefined sort key, the initial order from the file view was not preserved.
FIX: wrong directory in question whether configuration files should be removed during uninstall