Ah I see. Thank you. I've switched to soundblaster for music and recording is fine.

I'm not sure I follow you here. Would you please elaborate some more? How exactly do I 'capture them at a later point'?

During gameplay (Sierra games), Midi music and sound effects are fine, but attempts at both video recording (lossless codec installed) and audio recording result in 'avi's and 'wav's that have no music, but the sound effects do play. Any reason for this?