3rd Party Wii Component AV Cable
Bought it and test it.
Sound: Kind of not bad - can really listen to the sound improvements.
Gameplay Graphics: I tried it on Wii Sports. It has obvious changes, compare to the normal AV Cable.

Conclusion: A good return value of money.

yeah.. a bit improvement and color, but none in games
ermm.. slight improvement or none
it just make the game pixel stretched

value for money
Really a great improvement from composite cable. It is much clearer and solid colour display. The only problem is getting your cable plug into your LCDTV cause of the bulky head.

But other then that, it is a satisfactory buy. Value for money!

So so...
Image quality is excellent on a HD screen, despite the fact no difference can really be told compared to composite display on a SD screen or RGB on a HD one. Bad point is the sound, a bit crappy.

HD use only
The image quality displayed on a HD screen is excellent, despite the fact no difference can really be noticed compared to composite on a SD screen or RGB on a HD one. Bad point is the sound quality, a bit crappy.