• Record directly in any supported sound format. PCM, MP3, WMA, Ogg Vorbis, FLAC, APE and any format provided by a system codec are supported. Under Windows 7 and above, AAC Audio within MOV (for playback only), MPEG-4, and 3GP containers is also supported. In addition Professional Edition provides support for a number of high-quality stereo formats (PCM - up to 192kHz 24bit and float, FLAC - up to 192kHz 24bit, WMA Lossless - up to 96kHz 24bit, and formats provided by the Windows Media Audio Professional codec). For more information, see the Selecting an Optimal Recording Format Tutorial.
• Record streaming audio or local audio files reproduced by other programs, such as Windows Media Player, iTunes, etc., without using special lines of your sound board and without a loss of quality due to redundant conversions from digital to analog to digital. People using screen readers may set the program not to record their output. Additional options are available. For more information on audio recording, refer to the Recording an Internet Broadcast Tutorial and the Recording an Output of Another Software on a Computer with a Screen Reader Tutorial.
• Record any sound passing through any line of your sound card with the ability to listen to audio being captured. For example, you can record sound being played back by an external program, or sound from a microphone, an external LP, cassette, CD/DVD player, AM/FM/Satellite radio, etc. For more information, see the Recording from an External Device tutorial.
• Use Total Recorder as a VoIP recorder to record both parties of a VoIP (Voice over IP) calls or an Internet-telephony conversation when using programs like Skype, Google Talk, Yahoo voice, MSN, etc. For more information, see the Recording VoIP Calls and Internet-telephony Conversations Tutorial.
• Background record (i.e. capture streaming audio) an Internet-broadcast in MP3, WMA and Ogg Vorbis formats. This feature allows you to do the following:
     – Capure streaming audio (an Internet broadcast) in their original format without decoding and re-encoding.
     – Record without using an external player.
     – Extract track information from a stream.
  You can also slow down or speed up the playback of an Internet broadcast.
• Convert files to any supported format (including on the fly converting while recording). For more information, see the Sound Format Conversion Tutorial.
• Edit sound files using a built-in sound editor. This built-in sound editor allows you to cut, trim, and join your recordings. Editing can be performed using a visual representation of the sound or using clipboard operations. All editing functions are performed without decompressing/recompressing to preserve sound quality and save time.
• Use the time shift feature to listen to the recorded sound while a recording is being made. While listening, you can move anywhere within the recorded part of the sound stream and start playback. 
• Split recordings on separate clips. You can indicate that the sound being recorded will be split on separate clips during the recording. File tags can be created automatically.
• Split recordings on separate files. You can indicate that the sound being recorded will be split into separate files during recording based on different conditions (size, duration, low sound level, etc.). Splitting an existing recording can also be done. For more information, see the Splitting and Tagging Files Tutorial.
• Use Cue-sheet files. Total Recorder lets you create cue-points, which can be used for splitting a file afterwards. These cue-points can be created manually, for example to make a bookmark in a sound file. Or they can be created automatically during a recording session (based on pause reduction, changes of the clip information in an external player, etc.) or while capturing streaming audio and information about a track changes.
• Create and edit file tags. Total Recorder can work with file tags for any of the supported media formats. Tags can also include artwork and the recording's start time with the ability to display this timestamp.
• Play a media file at a slower or faster speed than normal while optionally preserving the original tone.
• Schedule playbacks or recordings using Total Recorder's powerful built-in scheduler. For example, you can schedule a recording and use a stop condition such as an absolute time, a duration, the absence of a sound signal, and so on. The scheduler includes many other options. For more information, see Using the Scheduler Tutorial.
• Normalize recordings to adjust the level of sound. Normalization of MP3 files is performed without re-encoding or any loss of quality.
• Perform general operations on playlists, such as merge multiple files in a playlist, rename files from a playlist using tag information, save a playlist, etc.
• Favorites are supported by Total Recorder. Favorites provide a faster and more convenient way to open a file, playlist, or URL. You can organize your Favorites list, use predefined sample links, and export and import Favorites.
• Put your computer in standby or hibernate mode when an automatic job completes.
• Perform batch processing. You can use batch processing to convert, normalize, split, rename, tag, change speed, apply add-ons, or perform other operations on multiple files. For more information, see the Batch Processing Tutorial.
• Save an audio file with a different speed than the speed with which it was recorded. This can be useful, for example, when you have recorded a news transmission and you want to listen to the recording at a faster speed.

These are only some of the features of Total Recorder Professional Edition. For more information, refer to the program's Help or the PDF-documentation.