有個mkv檔無法播放 裝了好幾個解碼器還是無法播放

這是以下使用PotPLAYER的訊息

File Source (Async.)::Output

==========================
無法獲取視訊/音訊資訊。
==========================


Media Type 0:
--------------------------
Unknown

[ AM_MEDIA_TYPE ]
+ majortype: TIME_FORMAT_NONE {00000000-0000-0000-0000-000000000000}
+ subtype: TIME_FORMAT_NONE {00000000-0000-0000-0000-000000000000}
+ formattype: TIME_FORMAT_NONE {00000000-0000-0000-0000-000000000000}
+ bFixedSizeSamples: 1
+ bTemporalCompression: 0
+ lSampleSize: 1
+ cbFormat: 0


==========================
無法獲取視訊/音訊資訊。
==========================


Media Type 1:
--------------------------
Unknown

[ AM_MEDIA_TYPE ]
+ majortype: MEDIATYPE_Stream {E436EB83-524F-11CE-9F53-0020AF0BA770}
+ subtype: TIME_FORMAT_NONE {00000000-0000-0000-0000-000000000000}
+ formattype: TIME_FORMAT_NONE {00000000-0000-0000-0000-000000000000}
+ bFixedSizeSamples: 1
+ bTemporalCompression: 0
+ lSampleSize: 1
+ cbFormat: 0

我使用了好幾款 解碼器依然還是無法播放\
只好拿 potplayer的訊息上來求助各位大大了