I recently got a HD camera that spits out AVCHD files. I thought about bringing the multiple MTS files into Vegas, adding a video track that had the date stamp on it and then exporting the video (with overlay track so when I watch it back years later, I'll know the date it was recorded) out into a big MP4 file.

I've decided against that and will just buy a 2 TB drive and join the multiple MTS files into a single file (m2ts) BECAUSE, I found out that when being played back on my WD TV Live or Seagate FAT player, if I turn on 'Subtitles', it will read the meta data from the MTS file and display the date/time the file was recorded on the screen. Problem solved because using Vegas, it was going to take days to render the project.

I then started looking for a program that could join multiple MTS files and I came across tsMuXeR. The only problem was that tsmuxer had audio sync problems so I then found this site: http://avchdvideos.blogspot.com/p/creating-batch-file.html which has an amazing little window that lets you drag/drop your MTS files into it and gives you the batch file needed to get around the audio sync problem when using tsmuxer by making use of another program called 'eac3to'. I added about 20 MTS files together with the batch file that his site created and everything was in sync and looked great. Except for one small problem......... I could no longer hit the subtitle button to bring up the time/date code from the mega M2TS file. I guess using tsMuXeR and eac3to stripped that data somewhere in the process.

Two questions:

1) Is it possible to retain the subtitle info when joining multiple MTS files with the programs I mentioned above so I can put the time/date code back up on the screen when I turn on subtitles? If so, how? Or bonus question, is there another free/cheap program that can join multiple MTS files (and keep the subtitle (time/date data)) that doesn't have audio sync problems?

2) I could probably figure it out since I have the batch file but, is there a program that does what his site can do as far as creating the proper batch file? I love that site since it makes it stupid proof but if I ever wipe out my drive or lose the bookmark for his site (and if it ever goes off-line one day), it would be nice to have a fall back plan. Maybe I could use a 'web copy' type program and just pull it down and make a copy of his entire site and keep it local?