This does not look like the problem I addressed with my patch, as it is unllkely your CD drive is not MMC-2, and the problem would have showed up in Feisty. Not sure the wiki is quite appropriate, but certainly check HAL output: as well as using HALD in debug mode you can use the HAL device manager (System->Preferences->Hardware Information): if it sees a CD it will show as a "child" of the CD drive named "Unknown Device", but from your description perhaps even this is not happening. Can GUTSY see your CD drive at all?
This does not look like the problem I addressed with my patch, as it is unllkely your CD drive is not MMC-2, and the problem would have showed up in Feisty. Not sure the wiki is quite appropriate, but certainly check HAL output: as well as using HALD in debug mode you can use the HAL device manager (System- >Preferences- >Hardware Information): if it sees a CD it will show as a "child" of the CD drive named "Unknown Device", but from your description perhaps even this is not happening. Can GUTSY see your CD drive at all?