drive:www.togo-tek.com wdm5.01 PLAYER：CYBERLINK POWERDVD4.0.1015 play dolby digital5.1 all channal was right! but dts5.1 left right center surroundl&surroundr all was right but but:swf channal was no sound!!! 用POWERDVD4回放DOLBY5.1讯源时各声道输出正常！但回放DTS5.1讯源时除0.1超低音声道无声音时其余各5声道输出正常！ 请问超低音声道为何不正常? DXDIA...