I am not familiar with the IS but I think it is the same radio and CD changer that the ES 300 has. I have an 03 ES 300 with the same problem. After working with the changer,(loading and ejecting) several times until I could see the cd and got it to eject enough that I could get twezzers to get it out, I removed the radio and changer from the car. Separated the changer from the radio,(several screws separates the changer and radio). Took the cover off the changer,( 4 screws I think) and lubed the cd mechanism with litheum grease with a Q-Tip. Was very careful not to get too much. You can see the tracks or moveable parts where it was lubed from the factory. Replaced the unit and operated the cd changer several times to spread the grease a little. At first it wouldn't eject but after about 4 loads and ejects, it started to workd like it was intended. Be sure to use a cd that you don't mind destroying because when it try to ejects and does not eject, the mechanism scratches it. Hope this helps