I was watching the UHD ISO file for Watchmen (ultimate cut movie) and it cut out a bit early on infuse pro 6. My first instinct was that the issue was in the file itself, however using a Dune player I can see the movie through to the end.
Note that this is one of the longest UHD titles that currently exists with the main title running at around 3 hours and 35 minutes at a pretty high bitrate. I believe that this could be a bug in the ISO parser or another similar issue.
*** correction ***
just tried watching the ending of the same file with Dune and it gets stuck somewhere down the line similarly to infuse.
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