Need help with a video ripped from Halo Channel

[ASSauLTxMasTER]

So, I downloaded a Terminal video from the Halo Channel using this link:
http://contentmedia.halocdn.com/d8d6...L.ism/manifest

However, the MKV output file refuses to play correctly.



Could it be because of the DRM?
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My second problem is that, when ripping from those manifest URLs, ismdownloader will stop at 2 seconds and start muxing.

[drbmn]

http://contentmedia.halocdn.com/d8d6...rean-Ch2).m3u8