没有损失，如果你还要经过功放，有全景声需求，建议封装成M2TS更好，也可以封装PGS字幕。
在AVS论坛的priitv8有专门针对SONY 800M2的帖子，摘录如下：
Chozx said:
Then i have to manually convert them and lose some quality but its oke. Thanks ;)
priitv8：
No. Just remux with tsMuxeR nightly and you are golden. No transcoding will happen. (almost) no time lost. Just the amount needed to copy the bytes from input file to output file. Normally takes only minutes on good SSD storage.
And make sure you use playlists for muxing. Some features consists of adjacent smaller clips. tsMuxeR will merge them into one single file.
So, from my experience - stick to m2ts files. They work exactly like blu-ray discs - atmos, dolby vision, original subs - all there. You only will lose all interactive menus (they are BD Java anyway), and chapter marks (they don't work on MKV-s either), they are not part of the video stream on optical disc, so thats why.
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