Hi,
I did read, trust me, nearly all the help/documentation pages. And so I did as suggested, but found a lot of troubles in my workflow doing so.
The problem for me is that recording in Motion JPEG those files are huge and in my rigg they are stored in a different hd than the one I use for edition, so I have to move them to that one, increasing a lot my pre-working time. In the other hand h264 is the final result I need, so using it as origin final results are better than if transcoding from one codec to the next.
So I started to look into the problem and found that Premiere Elements 13 takes normal Bandicam H264 + MPEG-1 L2 but Premiere Pro CC 2014 doesn't, but I was able to use AVI's with H264 encoded video created with some other program, so the problem was not the audio or the video codec.
To make it short I found that the problem is related to the BandiAviMuxer and the wrap it does. So I downloaded ffmepg static build from this place
http://ffmpeg.zeranoe.com/builds/ and then created a batch file with the lines:
@ECHO OFF
for %%a in (*.avi) do ffmpeg -i "%%a" -vcodec copy -acodec copy -f mp4 -y "%%~na".mp4
del *.avi
I just have that batch file and the static build in the same folder where Bandicam stores the records, so before to work on them I run the batch, wich will copy the video just with different wraper, making a MP4, which Premiere is very happy to handle.
Also found that Premiere Pro CC 2014 is happy taking audio in format MPEG-1, but as audio is not the very big load on the size of a record I use PCM for compatibility, just in case I have to use some other program in the process.
Edited: When I did write this I haven't yet tested any file with PCM processed with ffmpeg and it came up as not compatible, but as I told before MPEG-1 is accepted by Premiere Pro, so not a major issue, back to my origins and happier.
Now still the original question, being able to create a video with at least 2 audio streams could be useful. Or to apply each one to a different stereo channel. Otherwise a more human wise naming system for files could help to sort the problem for those, like me, that use a lot of files before to create a single one with scenes of the originals.
Thx for reading this and my apologies as I don't know how to explain it shortly.