David，
感谢回复。我正在通过手动把节目添加到 MCEBuddy 来测试这个问题。目前的情况是：当 5.3 或 5.4 启动 ffprobe 时会报错，而 5.2 不会。奇怪的是，两台完全相同的戴尔笔记本里，一台正常，另一台却不行。MCEBuddy、HDHomeRun、Kodi 都跑在同一台桌面服务器上。我之所以发现这个问题，是因为一旦 ffprobe 报错，程序就会进入“慢速 remux”，耗时极长，它误以为音频有故障。
我已经从 mcebuddy\ffmpeg 目录手动执行了同样的 ffprobe 命令、同样的参数、同样的节目文件路径，都能正常输出，因此权限应该没问题。但只要由 5.3 或 5.4 调用，就会失败。
2020-08-19T20:22:23 MCEBuddy.AppWrapper.Base --> Launching process C:\Program Files\MCEBuddy2x\ffmpeg\ffprobe.exe
2020-08-19T20:22:23 MCEBuddy.AppWrapper.Base --> Process arguments -hide_banner -probesize 100M -analyzeduration 300M -i "C:\Users\ldc76\Downloads\The 100 S07E11 20200812 [20200813-0000].mpg"
2020-08-19T20:22:23 MCEBuddy.AppWrapper.Base --> UI Session Admin Process : False
2020-08-19T20:22:23 MCEBuddy.AppWrapper.Base --> Setting process priority to Idle
2020-08-19T20:22:23 MCEBuddy.AppWrapper.Base --> Setting CPU affinity to -> 15
**2020-08-19T20:22:23 MCEBuddy.AppWrapper.Base --> C:\Users\ldc76\Downloads\The 100 S07E11 20200812 [20200813-0000].mpg: Permission denied**
**--> Process exited with code 1**
> 2020-08-19T20:22:25 MCEBuddy.Engine.ConversionJob --> Running custom commands
2020-08-19T20:22:25 MCEBuddy.Transcode.CustomCommand --> Engine running as service, enabling PreMetaCustomCommandUISession, since PreMetaCustomCommandShowWindow is enabled
2020-08-19T20:22:25 MCEBuddy.Transcode.CustomCommand --> Custom command parameters read ->
PreMetaCustomCommandPath =
PreMetaCustomCommandParameters =
PreMetaCustomCommandHangPeriod = 300
PreMetaCustomCommandCritical = False
PreMetaCustomCommandUISession = True
PreMetaCustomCommandShowWindow = True
PreMetaCustomCommandExitCodeCheck = False
> 2020-08-19T20:22:25 MCEBuddy.Transcode.CustomCommand --> No custom commands found
2020-08-19T20:22:25 MCEBuddy.Engine.ConversionJob --> Finished pre metadata custom command, source file size [KB] 3,423,865.00
> 2020-08-19T20:22:25 MCEBuddy.Engine.ConversionJob --> Getting show information and banner from Internet sources
2020-08-19T20:22:25 MCEBuddy.MetaData.VideoMetaData --> Extracting metadata from file -> C:\Users\ldc76\Downloads\The 100 S07E11 20200812 [20200813-0000].mpg
--> Checking for SiliconDust meta tags
--> Starting to extract payload from TS file, upto 64 TS packets will be processed
**WARNING> --> Error trying to read data to TS file. Error: System.IO.IOException: The process cannot access the file 'C:\Users\ldc76\Downloads\The 100 S07E11 20200812 [20200813-0000].mpg' because it is being used by another process.**
如有任何排查思路，感激不尽！
谢谢
Larry