[jdobbs]

Originally Posted by AmigaFuture

I was really hoping the video would be left alone as to not degrade it any further. Even though iPad 2+ use a higher resolution, the actual quality isn't as good as it could be. If it were, though, a lot more data would be used on already small storage space. Mine is 64GB. I thought 1280x720 is legal for Blu-ray, but I knew 29.96fps isn't. I doubted there would be a way to change the FPS without reencoding. Still there was hope. Which explains why some other programs I tried making Blu-ray or AVCHD's with always reencoded.

Now I'm really curious and don't get something... Windows Media Player Classic shows this:

Original MOV: Video: MPEG4 Video (H264) 1280x720 29.97fps 10326kbps [Video]
Audio: AAC 44100Hz mono 63kbps [Audio]

Converted to m2ts during Import: Video: MPEG4 Video (H264) 1280x720 29.97fps [Video]
Audio: Dolby AC3 44100Hz stereo 192kbps [Audio]
Only the audio was changed.

From there clicked "Backup" and created Alternate MKV: Video: MPEG4 Video (H264) 1280x720 29.97fps [Video]
Audio: Dolby AC3 48000Hz stereo 192kbps [Audio]

Then copied both M2TS and MKV to the directory of my originals. Exited (for testing) BD-RB, and deleted the Imports and MKV from the Working Path.

Then loaded BD-RB again, Imported the M2TS and MKV then burned the resulting output and played with my LG player. The M2TS import produced the "stuttering" sound, but when switching, Disc Menu and Selecting, the 2nd, from MKV, played just as the original..without "Stutter". So, it seems the video 1280x720 is okay and I see 2 changes in the audio. Mono to Stereo and frequency changes that SEEM to have something to do with it. Perhaps a bug unnoticed as of, yet? A lot of wondering here. Is my LG player playing fine...something that should be illegal in the audio and not the video?

All I can say is the example you gave me plays back fine on my SAMSUNG player after importing and encoding, even without the changes (both audio and video are fine). But that's probably because the player is loose with the standard. Strictly speaking it shouldn't play the 720p@29.97fps at all, no matter what. But... it is fine for MKV -- and might playback fine as an MKV even on the same player.

It's possible that BD-RB made a mistake when converting to stereo -- but I also know that MPC is wrong a lot when it reports audio types so I wouldn't make a bet either way. I see MPC reporting stereo as 6 channels all the time. I'll look at the AAC->AC3 reencode and see what's up.

It is possible to change a framerate from 29.97fps to 59.94fps without reencoding using pulldown/rff flags. But it doesn't work very well on blu-ray or with TSMUXER.

I wouldn't worry about reencoding. With the kind of bitrate you will typically get on this kind of backup, you're getting a virtually lossless backup even with reencoding.