I tried, with the Nvidia Cuda codec, using PCM. I don't have any external codecs (that I know of) installed, but I can't seem to actually be able to open it. You must be magic.
Yes, I'm using 320.49 driver.
Tried to open in Sony Vegas Pro 12 with no luck.
So I guess I'll just wait for the Bandicam update.
Sorry it was no joy
I should try testing if I have any other secret powers that I don't know about..
The only other thing I can think of at the moment, is I remember struggling a lot with Vegas to open 'any' AVIs or non-native codecs. I had to wade through tons of forums of people saying, "that's how Vegas is, change the format to a different one then", while I knew that it was not just 'how Vegas is', there must be codecs or filters installed to allow Vegas to access them. So, I tried many different things and one day everything just clicked. I was not good at testing back then, I did not keep track of what changes I was making, in order to track what worked and what did not, but a couple of the things I tried were Codec Packs and All-Purpose Filters.
Most people disregard codec packs, but they work very well. Yes you'll get extra codecs and ones you may not need (even if you try to select which ones to install) but if everything works fine and how you want it to work, what's the problem? The other thing is filters, like FFDSHOW. These are more like 'translators' I tell people, that work on-the-fly to stream one video type through another, so that applications can open your video files. These NVIDIA CUDA clips created by Bandicam are identified as "x264vfw" by Vegas, so that can mean FFdshow's Video For Windows filter or the x264vfw codec itself. Do you have the x264vfw (H264/AVC) codecs installed? That is the format the CUDA recordings are.
I would suggest trying those codecs first, then if it still doesn't work and if you wish to, try the FFdshow filters and under the VFW configuration, tell it to translate every single one with FFdshow (libavcodec). Then, Vegas should use those filters as a translator to open any formats (especially h264/AVC).
I have access to another system that I may 'Redo' with a format and Reinstall of Windows soon, so I will try a clean start as well, testing as I add programs and codecs, to see which one got it to magically work; but for now try those two things, if you wish, to see if that's what is opening the video files. Bandicam - I would think - would be the same on all systems, so other than the fact I didn't uninstall previous versions of Bandicam as I upgraded it (somehow keeping/creating some ability to create the files differently), those two things above are the only thing I can think of at the moment that is creating all the magic.
Good luck with it!
Edit:
If it helps, there have been a number of people helped by this video of mine here
http://www.youtube.com/watch?v=YrgflGSu59A
(the Bandicam Forum post for it is here
viewtopic.php?f=14&t=1687 )
It shows how to change the format of x264 recording so that it can be opened in Vegas and Premiere. Although that is dealing specifically with recording with the x264vfw codec (Bandicam calls it as an External Codec), another problem people have run into (you can read it in the Comments section of the Youtube video) is opening and editing the files in Vegas properly.
One person for instance, had to adjust the keyframes created by x264; but another person, more importantly, had to install both the 32-bit and 64-bit version of the x264vfw codec to import it into Vegas fully (they also uninstalled any codec packs they had). This is an example of installing both versions of the codec (as I briefly stated just above) that may also work for you. Good luck!