1.Sigma chip: The most important 2D chip 8642 8670, the future may be 8910 3D chip. Sigma chips are known for their picture quality and sound quality. The main support for HD packaging format, only 8670 can support 480P RMVB
2.Marvll chip: 3D chip 88DE3010, with Blu-ray navigation 2.0, exquisite output picture quality, 3D effect is the best at present, the disadvantage is that its compatible package format is not good.