Video corruption despite no errors

[dstaley]

I'm experiencing some odd video corruption despite using a full disc backup that completes with no errors.



When I play back the unencrypted backup in VLC and MPV, I experience the same corruption at the same points in the video.



If you look in the bottom right corner of the video, you can see what I'm talking about.

From what I understand, doing a full disc backup will verify the integrity of the backup against checksums included on the disc. Since I didn't receive any integrity errors, I'm not sure where this corruption is coming from. The only thing I can think of is that these videos are all encoded with VC-1, so maybe the corruption comes from bad VC-1 decoders?

Code: Select all

Video #1
ID                                       : 4113 (0x1011)
Menu ID                                  : 1 (0x1)
Format                                   : VC-1
Format profile                           : Advanced@L3
Codec ID                                 : 234
Duration                                 : 1 h 2 min
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 25.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan order                               : Top Field First
Compression mode                         : Lossy

Any ideas?

[preserve]

Possibly bad encoding.

Best bet is to find out from other people who own same disc.

Since you are experiencing the issue at a specific place with specific disc (and with multiple players), suggest you rename the post with the name of the disc to attract attention of people who own it, and specify episode and timecode for comparison in your post.

Also try playing the disc on a real Blu-ray player on a TV for comparison, and see what you see.

[Woodstock]

I see some of those distortions - they seem to be part of the original disk.