Expstudio Audio Editor can be used to record from any available source. Therefore, you should make the necessary hardware connection from your stereo or other source device to your sound card. Now, within Expstudio Audio Editor, select the connection used on your sound card as the input source for recording. Start playback on your stereo or other device, and click the record button on the Expstudio Audio Editor window. When the audio content playback is complete, press Stop in Expstudio Audio Editor, and save the recording via the Save As command. You should keep in mind the frequency at which recordings are saved.