MP3 Toolkit is a freeware utility with a useful number of tools for working with MP3s and audio files in general.
The welcome screen is a shortcut to all the tools. These are MP3 Converter, CD to MP3 Ripper, MP3 Tag Editor, MP3 Merger, MP3 Editor, MP3 Cutter and MP3 Recorder.
The first, MP3 Converter, prompts the user to add individual or a folder of audio or music files and then the options to convert them to or from MP3s. Relevant settings for the conversion process are Bitrate (Kbps), Rate (Hz) and the option to output in either mono or stereo. It addition to WAV, FLAC, MP3 and OGG there is also FLAC, AAC, AC3 and AMR support.
CD to MP3 Ripper simply prompts the user to insert a CD which is to be ripped and converted to MP3s.
MP3 Tag Editor is more feature rich. Load MP3(s) to edit, add or remove tags. It is possible to clean file names for some naming consistency and to generate file names based on song, album, directory and other information. There is also support for ID3, v1.1 and v2.x.
MP3 Merger can combine files into one and supports WAV, FLAC, MP3 and OGG files.
MP3 Cutter is intended for creating ringtones. Load an audio file, press play, use the marked buttons to choose the start and end points. Finally click save to save the chosen section as MP3, WMA, AVI or AMR.
MP3 Recorder lets the user set a Sample Rate (32000, 44100 or 48000) and Bitrate and then start recording. This works for voice recording and depending on the PC sound card for capturing system sounds as well.
In addition to the audio formats listed above MP3 Toolkit can capture audio from other file formats such as FLV, MP4, M4V, M4P, MOV, M4A, MPG, RM, SWF and WMV. MP3 Toolkit should work on Windows 2000 and above.