I recorded a concert with video and got the audio from a new tascam dr60d. It records two files, a regular copy and safety version that's 6db cooler. Anyway, when I import into Vegas, the Tascam files don't have a waveform on a single channel, instead it's a single waveform that fills the whole track space on the timeline, and when I right click on it, all the options under "Channels" are greyed out. Audio plays on both speakers though. What's going on? My dr100 never did this.