Windows 10 put a big update on my computer today (8:8:2019), and now the - end of file: error parsing ac3 audio stream - message has returned. As before, it seems to only affect MP4 recordings, and if you convert them to Real Media HD files, then they can be burnt to DVD without failing but it involves time wasting converting and a slight loss of picture quality. Last time, with help from Sharma at Real Player, I found that I was missing a codec pack, which when she installed it, solved my problem. I assume that the Windows 10 Update has killed the codec, and I am back at square one. Do I need a new codec? Any ideas Sharma?