Originally Posted by maximus74
It is possible to play with OPPO large m2ts files or mkv (30-40G) with support for eastern European subtitles and diacritics?
All to be played from an external 2-3 TB hard disk drive.
You are speaking of text-based subtitles like SRT, correct?
When embedded into MKV by mkvmerge, text subtitle tracks are converted to UTF8 and Eastern European character sets are supported by the OPPO. Also, in my testing, I see Cyrillic, Hebrew, and some Japanese. You may have to indicate the input encoding to mkvmerge.
(Is UTF8 required for embedded text subtitles in MKV? I'm not sure, but mkvmerge always produces that encoding).
In the past, external subtitle files were required to be the extended ascii oriented to Western Europe, with no other options.
Although it has not been mentioned in the release notes, in my testing of recent firmware, UTF8 encoded external text subtitle files have started working. So far, the files must have a Byte Order Mark. This is not required by UTF8 but seems to be standard in the Microsoft world.
I have not tested external subtitles with M2TS, but it has been reported here that they work. We would have to confirm the undocumented UTF8 support.