The embedded thumbnail created for MP4 files ripped from DVDs appears to be right-left reversed. After converting a large number of television episodes, and having a feeling that something was not-quite-right with the thumbnails, I finally noticed one with writing that made the mirroring obvious.
Knowing what was giving me the not-quite-right feeling, I was able to go back through and confirm that they're all right-left reversed. It's easy enough to fix on my end (or in most cases, just ignore), but I thought you might like to know.
It does appear to only apply to cases where the thumbnail is created on the fly. Ripping from blu-ray doesn't seem to have this problem as all my blu-ray disks have a title card in the \BDMV\META\DL directory that the blu-ray ripper uses by default.
Knowing what was giving me the not-quite-right feeling, I was able to go back through and confirm that they're all right-left reversed. It's easy enough to fix on my end (or in most cases, just ignore), but I thought you might like to know.
It does appear to only apply to cases where the thumbnail is created on the fly. Ripping from blu-ray doesn't seem to have this problem as all my blu-ray disks have a title card in the \BDMV\META\DL directory that the blu-ray ripper uses by default.
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