The S-Video cable (SCPH-10130u) carries dual-channel (stereo) audio and s-video at 576i/50 Hz (PAL) or 480i/60 Hz (NTSC), which provides a clearer picture than the standard AV cable.
The Component AV Cable (SCPH-10490) is a cable capable of carrying 576i/50 Hz or 480i/60 Hz using the YPBPR and RGB standards, as well as standard stereo audio, via RCA connectors.