4K ISO Burned to BD50: Sub-Titles Not Found on Panasonic 820

[Bullitt]

I have tried compressing Umbrellas of Cherbourg 4K ISO (62gb) to BD50 in Full Movie mode. Operation is successful with proper menu but when burned with ImgBurn the pgs English sub-titles are not found when played back on Panasonic 820 player. The player is set up correctly for sub-titles and the movie menu indicates on or off selection. In the player sub-title options, only Off is available. Funny thing is the resulting compressed iso does play with sub-titles using any video player on my pc. I am perplexed why this is. Is there something happening during the full movie copy process that is messing with the pgs file ? I can't seem to find anything in the software where I can confirm I want these sub-titles. Thanks

[october262]

I have tried compressing Umbrellas of Cherbourg 4K ISO (62gb) to BD50 in Full Movie mode. Operation is successful with proper menu but when burned with ImgBurn the pgs English sub-titles are not found when played back on Panasonic 820 player. The player is set up correctly for sub-titles and the movie menu indicates on or off selection. In the player sub-title options, only Off is available. Funny thing is the resulting compressed iso does play with sub-titles using any video player on my pc. I am perplexed why this is. Is there something happening during the full movie copy process that is messing with the pgs file ? I can't seem to find anything in the software where I can confirm I want these sub-titles. Thanks

first, try checking for a software update for the Panasonic 820 player, then if you have a flash drive,
put the movie on the USB stick as MKV + the PGS subtitles and see if it'll play that way.

[Bullitt]

So, first, thanks for your suggestions. There is no available firmware update for this Panasonic player. So, I opened the 58gb full iso in WinIso and located the stream folder and m2ts file that has the pgs subtitles and created an mkv file. I played this with the Leawo blu-ray player on my pc and the sub-titles played as they should and in the settings the sub-titles show as English. Perfect.
Then I created an mkv file with the DVDFab compressed BD50 iso using the same method and played this file (44gb) on Leawo and the sub-titles also played correctly but the player settings showed an unknown sub-title file. Because the compressed bd50 iso is what I burn to a Verbatim dual layer disc, I'm thinking the unknown sub-title isn't being recognized in the Panasonic stand alone player. Is there any settings I can change to get DVDFab to properly recognize the PGS English sub-titles during the full copy compression ? All I can deduce is that the problem arises somewhere in the compression process. Thanks

[october262]

So, first, thanks for your suggestions. There is no available firmware update for this Panasonic player. So, I opened the 58gb full iso in WinIso and located the stream folder and m2ts file that has the pgs subtitles and created an mkv file. I played this with the Leawo blu-ray player on my pc and the sub-titles played as they should and in the settings the sub-titles show as English. Perfect.
Then I created an mkv file with the DVDFab compressed BD50 iso using the same method and played this file (44gb) on Leawo and the sub-titles also played correctly but the player settings showed an unknown sub-title file. Because the compressed bd50 iso is what I burn to a Verbatim dual layer disc, I'm thinking the unknown sub-title isn't being recognized in the Panasonic stand alone player. Is there any settings I can change to get DVDFab to properly recognize the PGS English sub-titles during the full copy compression ? All I can deduce is that the problem arises somewhere in the compression process. Thanks

found this - ImgBurn doesn't directly handle PGS (Presentation Graphic Stream) subtitles. ImgBurn is a tool used to burn DVDs and Blu-rays, and it primarily focuses on the physical disc format, not the specific subtitle formats used within those discs.






To work with PGS subtitles, you'll typically need to use a program like HandBrake or other subtitle editing software to either convert PGS subtitles to a different format like SRT, or to burn them into a video file for playback. ImgBurn can then be used to burn the video file (which may include hard-burned subtitles) onto a disc.

[Bullitt]

Copied both versions to the ntsf usb and played them both on my LG C65 tv and neither mkv showed the sub-titles, which the tv is set up for of course. The newly released 4K Umbrellas of Cherbourg is the only 4K movie I have had sub-title trouble with after compression to BD50 iso. Sadly, there you have it.

Well, I'll notch this up to a one-off issue, rarely have issues like this thankfully. I have compressed dozens of foreign movies and never have had this problem with sub-titles, so I won't worry about it. Thought there may be something I was doing wrong but don't think so. Thanks for chiming in.