I have been doing this for a long time but suddenly file size has become a problem, it never was before. In fact I’ve been editing 8 hour audio files in audacity for many years. I use the frequency analyzing feature to identify bat’s sonar. This morning Vegas refused to send a 6 hour audio file to audacity, that’s never happened before, an error code said file too large. I’ve used audacity successfully for 12 hour files. I’ve only recently used audio and video together and it seemed to work fine at first. If I try reloading Sony may refuse to let me reload Vegas 11 like they did with Vegas 7. I might try reloading audacity, perhaps a corrupted file.
enjoy yourself, it’s later than you think.