Here is the simplest scheme for converting a CD ROM drive of your computer to a Audio CD player. The minimum requirement for the player is that, it should have a audio output and skip button. Luckily most of the CD ROM’s are equipped with both of these.

 The CD ROM drive needs two voltages, 12V & 5V for its operation. So the main objective is to build a suitable power supply for the CD ROM drive. The IC1 (7812) together with associated components produce a regulated 12V DC. The IC2 (7805) together with associated components produce a regulated 5V DC. These voltages as well as ground can be connected to the corresponding voltage pins of the CD ROM drive using a male type CD ROM drive power connector. The 12V can be connected to the yellow wire of connector, 5V to red wire and GND to black wire as shown in figure1. Now the power supply is ready.


Make the circuit as shown in the circuit diagram. Power up the circuit after connecting the power connector to the CD ROM drive. Now the power LED of the drive will glow.Insert the audio CD. Now the music will be available at the audio output socket of the drive.It can be heard using a headphone. The skip button of the drive can be used to play next song.

 By connecting the audio output to a power amplifier you can enjoy the music in a greater wattage. Click Here! to get the amplifier circuits suitable for this project.

Circuit Diagram with Parts list.



  • For car stereo applications you don’t need the transformer,rectifier and the 7812 regulator. 12V will be available from battery.You just need to produce a 5V from it using a 7805 based regulator. Connect the corresponding voltages to the connector as shown in figure 1 and connect the connector to drive.Done.

  • The amplifier for the car audio CD player must be one operating from 12V.

  • Do not connect the voltages to CD ROM drive in wrong polarity.Double check the voltages using a multimeter. Wrong polarity could easily damage the drive.

  • cd-rom-drive-power-connector.jpg


  1. What is the transformer voltage that can we use for this..?

  2. duplicacion dvd

    The capacitors which i have some slight variation in their values…Can i use that to making this circuit?


    i made above circuit. But when cd rom is connected, then ic 7805 is heating up. i tried ic 7809 then 7805 to reduce voltage.But then both the ic’s heated up. 7812 is remained cooled. how can we improve this difficulty.

  4. is there any way to convert dvdrw drive to audio cd player???

    there is no play button in front of the tray???

    kindly advise. thank you… 🙂

  5. Thank you for these steps,I followed your instruction plus some outsource help to convert my CD-ROM drive to Audio CD Player and at last I won.

  6. Thank for the tip. I will use old CD-ROM ( computer found in the garbage ) for a CD player.

  7. I don’t think the “Voice Modulator Circuit” would be a suitable amplifier for a CD audio output, is this a wrong link?

    Also most CD drives have both audio analog & digital outputs. I presume better quality sound is obtained if the digital output is used but no mention is made about this or even if/how a digital output can be used.