home theater system: 1. Fully compatible with DVD,super VCD/VCD/CD/MP3/ ... ,DVD-R/RW,JPEG,support USB and card Home Theater system detailed specification: 1.Fully compatible with DVD,super VCD/VCD ... .Input selection:2 groups,welding hand scaffolding,careful layout,debugging,checking the sound17.Materials:electron tube using the shuguang tube,3 ...