seaegg: If you're using Windows XP, you don't need an audio cable to hear music from your optical drive.You can use your IDE cable to do it. Go to Control Panel->SYstem->Hardwar->Device Manager->DVD-CDRom drives->The drive you want->Properties. In that, click on the "enable digital audio for this CDROM device.
Q6600@3.1Ghz | Asus P5Q-E | 4GB DDR2-800 | 8800GT | 4TB HDD | Viewsonic vx2025wm
Xonar DX | Pioneer DVR-212 | Pioneer 111L | Benq 1655