I recently upgraded from Vegas Pro8 to 10 and installed the latest version c and build. I cannot open AVI files I previously rendered in Vegas 8 on an XP computer. They were 1280 x 720p and all played back fine on the older software and machine. In Vegas 10c, there is an "error opening a codec" message and "the file could not be opened" on all of them. Also, the 1920 x 1080 24p AVI files that I rendered on the older system adn which played perfectly will load into the new Vegas, but they play back very poorly with frozen stills even in low "preview" resolution though there is plenty of RAM and only one track. However, m2t files play back perfectly in Vegas 10 even with multiple tracks and FX. So I am assuming this is a file type problem. Is there a solution to this? Thank you.
Windows Version: 7 64-bit
RAM: 24 GB
Processor: i7 920
Video Card: nvidia gforce GTS 250
Sound Card: Echo Audiofire 2
Video Capture: LSI
CD Burner:
DVD Burner: PHILLIPS SPD7000P
Camera: SONY HDR-FX1
Windows Version: 7 64-bit
RAM: 24 GB
Processor: i7 920
Video Card: nvidia gforce GTS 250
Sound Card: Echo Audiofire 2
Video Capture: LSI
CD Burner:
DVD Burner: PHILLIPS SPD7000P
Camera: SONY HDR-FX1