importing m2v files into Vegas pro 11

Gabonviper wrote on 9/13/2012, 11:58 PM
Hi,

I have a problem: I had just finished editing a 4-hour-plus blu-ray concert film project, and then deleted the folder with the source files by accident. I had made a back-up but it lacked a few key source files.

Prior to this blunder I had tried to fit the movie onto two 25GB blu-ray discs, but with the menus and all the renders were something like 1,5 GB too large for each disc, so I wanted to create a new version, with most of the film (the full concert) on a 50 GB disc, and the rest (the extras) on a 25 gb one.

I do have the finíshed renders still (two .m2v files), and one possible solution would be to import the finished m2v files into Vegas Pro 11, but I haven't found a way to do this. If this was possible, I could replace the missing files with the imported m2v sequences and rerender it as needed. Anyone know how I could do this or find a way to arrive at the same goal by using the finished renders as source material?

Alternatively, would it be possible to trim the second finished m2v file in DVDA so that the whole concert would fit on a 50GB blu-ray disc. I have all the files for the extras (not so for the concert), so I could render a new file for the extras in DVDA.
I asked the same question in DVD Architect Software just to make sure I'd get replies, as I am desperate, and naturally quite angry at my own stupidity.

Help appreciated,
Marko

Comments

john_dennis wrote on 9/14/2012, 12:05 AM
Use a program like tsMuxer to combine the .m2v and/or .wav files into a .ts or .m2ts and drop it back on the Vegas timeline. You will suffer a generation loss.
rraud wrote on 9/14/2012, 10:34 AM
"deleted the folder with the source files by accident"
Have you tried a file recovery app like Recuva. If the files were not overwritten they should be recoverable.
John_Cline wrote on 9/14/2012, 5:23 PM
Vegas can handle program streams, but not elementary streams like M2V. If you simply remux the elementary audio and video streams files using the suggested tsMuxer into an MPEG program stream or a transport stream, there will be no generation loss in the conversion itself. There will be generation loss when Vegas re-encodes the file after editing.
rstrong wrote on 9/15/2012, 12:40 AM
Yes, you can trim in DVDA. Use the yellow flags that appear on the timeline and drag them to your new starting or end points.

R. Strong

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Gabonviper wrote on 9/15/2012, 3:11 AM
"Yes, you can trim in DVDA. Use the yellow flags that appear on the timeline and drag them to your new starting or end points."

This would be the perfect solution to my initial problem of neither of the rendered files fitting onto a 25gb blu-ray (the sizes being around 24,7 gigs each, together they'd also be too large for a 50 gb disc, whose real capacity is around 46 gigs, not 50gb).
If this works, I could fit the whole concert on one 50gb blu-ray (there'd only be a fraction of a second of a pause where the second file starts) and the rest of the second file (extras) on a 25 gb. And now I wouldn't have to worry about any missing files or rerendering the project to fit on two discs, as I would now be able to utilize the rendered files.

But: if I trim the second file, will this affect quality in any way, i.e. will DVDA then recompress the original file?

Also a look at the optimize disc settings suggests that the new Out Point doesn't seem to change the duration of the file or the size of the project on a blu-ray in any way - does this matter? The reason I'm asking is I don't want to start burning an expensive 50gb blu-ray only to find the project didn't fit on it after all.

(Of course I still do need to find the original files to repair the project for DVD rendering (to take place later), as I don't want DVDA to recompress the rendered blu-ray files for DVD.But that's another story.)
Gabonviper wrote on 9/15/2012, 3:25 AM
By the way, I took your advice and remuxed the m2v file using tsmux (I chose m2ts) and tried to import it into VideoReDo, but the program returns: "No PIDs specified when trying to open a transport stream", failing to open the file. Any idea where I went wrong?

By the way, when comparing the original file and the m2ts Vegas re-render, I see very little degradation of quality when viewed on the computer screen. Perhaps if the sections I lost had been close-ups the differences would have been greater. Or maybe they will be more evident when viewed on a silver screen, though I doubt this.

Nevertheless, it would be nice to be able to utilize the VideoReDo program to the full.
Gabonviper wrote on 9/15/2012, 8:06 AM
It now seems Recuva was able to find the deleted files. Identifying them took some time as they had been renamed and no original path was given. There is a clear quality improved over the muxed versions, so I am happy. Thanks for the help, Clive, rraud, rstrong and dennis

cheers,
Marko
PeterDuke wrote on 9/15/2012, 8:08 AM
What is your source video? Is it HDV (mpeg2) or AVCHD (mpeg4)? I tried using Videoredo before I suggested it in your other thread. If you have mpeg2 I suggest that you use the .ts option with tsmuxer, and rename it to mpg. That is what I did.
Gabonviper wrote on 9/15/2012, 1:41 PM
It's mpeg2. Thanks, I'll try that.