Ok, well I've manged to make quite a bit of progress, but now I have an issue with sound.
I converted the mkv file to AVCHD - disc, transcoded at x264, the output file was 25gb.
I then used BD Rebuilder v2.20.03 beta, to rebuild the movie, and compress to 7.4gb to I could burn to a DL -9 dvd.
This worked great although it did take 14 hours to rebuild, but hey, beggers can't be chosers.
The last step I done, was burned it using imgburn to create a UDF 2.5 disc.
I have inderted it into my PS3, and it loaded perfectly, the video quality was almost identiacl to that of a Blu-Ray amazing - only problem was there was no sound?
When I go to sound settings it just states '1 unknown' on the ps3?
Does anyone know how I can change the sound before burning, or check to see what sound is encoded.
Did you have synched sound after each step? ie. after generating the 25GB file from AVCHD? And after using ReBuilder? if so, I don't know, as I've never used any of the programmes & I don't use consoles.
If there is an issue after using Rebuilder, you may want to check here as the author is one of the mods.
Finally, if each step has shown a correct, working media file, I would assume the issue lies with the burning; not sure how or why. Try another programme and/or another DVD disc brand. Also the imageburn forum