Vegas does not seem to be able to open BlackMagic avi files. Same issue as described in this post : https://www.vegascreativesoftware.info/us/forum/movie-studio-13-24-bit-pcm-audio-support--101772/

Video and no audio on the timeline, and a message of audio stream attributes could not be determined.

Can't find any fix other than extracting the audio in the AVI to a .wav, which is not desired - not only does it take a lot of time (almost a realtime process), but the .wav isn't in sync with the video.

What is the point of spending hundreds of dollars on software that cannot open PCM AUDIO ?????

This happens on the very latest build of v15.

Anyone got a fix? This is ridiculous.