To convert a cassette tape to a CD, first equip yourself with recording software and audio hardware. An inexpensive solution is to use a walkman or cassette deck. For recording, download Audacity, a freeware package that allows you to convert cassette tapes and records into CDs or digital recordings. It also has other features that allow you to change the pitch and speed of a recording.
If you do not already have a cassette player, you can purchase a portable player. If you do have one and have not used it in a long time, it might be wise to first remove dirt from the heads using a head cleaning tape to improve the quality of the audio.
Once you have everything you need, connect the RCA plugs or stereo lead phono plugs of the player to the line-out socket of your cassette player and a 3.5-millimeter audio-input minijack plug on the line socket of your computer’s sound card. The jack socket on your computer may be labeled “Line In” or color-coded blue.
Once connected, access Windows Sound Recorder on your computer by going to Settings, then Control Panel, and then click and open Sounds and Audio Devices. Click on the Audio tab and ensure that your sound card is ticked as the Sound recording device. Then, go to Volume Control. You can do this by clicking on the little speaker icon that appears on the lower-right part of the screen. Then, click on the Properties tab, and select Recording. Make sure you the check the Line In.
To start recording to your hard drive, use Audacity. Once you recorded your music to your hard drive, save it on an audio CD using an audio CD recording tool, such as Nero.